Microsoft

[ari-free]

I wonder what Ballmer will say after seeing this tablet:
Motorola Tablet Headed to Verizon Will Emphasize TV Viewing | Android Phone Fans

 

[A.Nonymous]

Softmaker is working on an Android version
SoftMaker : Homepage
This is what their Office for WinMo looks like:

WinMo has a version of Office included with it. It's fully supported by MS and works the same as the desktop version.

 

[ari-free]

Here's their comparison page:
SoftMaker : SoftMaker Office for Windows Mobile : Feature Comparison