I saw this over at Mobility Site and wanted to pass along the happy (or not so happy) news. The WM6 update for the AT&T Treo 750 is now available for download.  The update SHOULD go well for those of you that can actually download it.  Puzzled..?  Read on my friends…

I pulled this down last night and have a version that got out before Palm put in the serial number validator on their site; but it makes no difference for me (more on that in a sec…) In order to download the new OS for your Treo 750, Palm requires that you enter your serial number into a validation field on their site before the download starts.  The validator insures that only AT&T 750 owners get the update and can install it on their devices. Makes sense, right?  If you were to actually get this update on any other Treo, it would brick the device.  Thanks for the help, Palm, you’ve saved me from myself…

However, many people who have tried to download the software are running into 2 interesting problems:

1. Invalid Serial Number
   Despite having a Cingular branded 750, I (and it appears many legitimate 750 owners as reported on AT&T’s own forums, XDA Developers, and other major Treo boards), many users can’t download the update.
2. Invalid Software Version
   I have software Version Treo750-1.10-CNG on my device. The updater wants Treo750-1.13-xxx on your device to install the ROM upgrade. Absence of version 1.13 makes the updating think you have an invalid device.

So even though I was able to get the updater down without my serial number being validated last night, the software won’t install.  Oh goody…

Complete information, including the download link for the update can be found after the break. If you download it, and it installs for you, let us know how things went and if you like WM6!

What can Windows Mobile 6 do for you?
Windows Mobile 6 combined with Exchange Server 2007 support is available out of the box and delivers a wide range of enhanced features, including the following:

• Microsoft Direct Push Technology connection to email, calendar, contacts and tasks
• Email enhancements such as HTML-formatted email messages
• Improved Calendar with Day-at-a-Glance bar. 
• Ability to set an out-of-office message from the Treo smartphone
• Mini-SD storage card encryption, password and PIN improvements, and remote data wipe
• Ability to search for email messages on the Exchange server
• Meeting request and scheduling conflict improvements

Palm, Inc. (Nasdaq: PALM) today announced an update to Windows Mobile 6 for Palm® TreoT 750 smartphone customers in the United States. Windows Mobile 6 brings increased functionality, enhanced user interface and strengthened security and performance to the Treo 750 smartphone, which is offered exclusively in the United States by AT&T. The update is available today as a free download for existing Treo 750 smartphone customers.

The Treo 750 currently is available in the United States on AT&T’s 3G BroadbandConnect network, which is available in more than 200 major metropolitan areas and provides average download speeds between 600Kbps (kilobits per second) and 1,400Kbps. For those customers, the update will facilitate High-speed Download Packet Access (HSDPA) capability, allowing faster data-download speeds on 3G/UMTS/HSDPA networks and access to AT&T Multimedia services: AT&T Music, CV (Video), and AT&T Mall.

“The enhanced security and productivity tools available in Windows Mobile 6 will allow people to be more productive with their Treo smartphones,” said Tim McDonough, senior director of product management at Microsoft Corp. “The Windows Mobile 6 support of storage card data encryption, combined with the ability for IT departments to wipe data remotely if a device is lost, gives businesses the confidence to use Treos to accomplish critical business tasks.”

Windows Mobile 6 combined with Exchange Server 2007 support is available out of the box and delivers a wide range of enhanced features, including the following:

• Microsoft Direct Push Technology connection to email, calendar, contacts and tasks
• Improved Calendar with Day-at-a-Glance bar.
• Email enhancements such as HTML-formatted email messages
• Ability to set an out-of-office message from the Treo smartphone
• Mini-SD storage card encryption, password and PIN improvements, and remote data wipe
• Ability to search for email messages on the Exchange server
• Meeting request and scheduling conflict improvements

The Treo 750 from AT&T is a five-band world phone with global 3G services that provides email, messaging, web browsing, and organizational capabilities.⁽³⁾ The Treo 750 uses AT&T’s industry-leading international footprint, which gives users the ability to make a phone call in more than 190 countries and access data applications in more than 135 countries. This all-in-one phone is a powerful business tool that delivers advanced communication capabilities and greater productivity with quick access to information and applications.

“Palm and Microsoft’s alliance continues to bring the best mobile experience to Treo customers,” said Brent Remai, vice president of business and consumer marketing, Palm, Inc. “The Treo 750’s connection to Exchange Server without the need for extra servers and middleware, combined with our unique ease of use, makes the Treo a win-win solution for IT departments and business users as they seek the most of their smartphone.”

Palm’s Windows Mobile 6 update for the Treo 750 is available as a free download at www.palm.com/750updateATT.

Source : Palm, Mobility Site