iPhone users have only the online App store to go to for applications.
Windows Mobile applications, as they have been around much longer, are scattered in many locations, making it a challenge to find, download and use.
Accelerometer-based games are almost non-existent on the Windows Mobile platform. If you are into games, the iPhone has no comparison.
However, Windows Mobile business applications let the Omnia II shine. Bundled with Microsoft Mobile Office, it lets users read and edit Microsoft Excel, Word, OneNote and PowerPoint files. You can even download and install Mobile Office Communicator for instant messaging.
Winner: A draw