It has been almost 12 months after Microsoft released Office 2007, now the mobile edition is comming, which is called Office Mobile update, its fully compatible to Office 2007. it can open office 2007 document without problem.

the very important news is its free.

you can download it from here.
http://www.microsoft.com/windowsmobile/software/officedownload.mspx

Microsoft Office Mobile Upgrade
http://www.microsoft.com/windowsmobile/software/officeupgrade.mspx

Supported Operating Systems on Windows Mobile Devices: Windows Mobile 5.0 Pocket PC; Pocket PC Phone Edition; build number 14847 or higher.