Here is the answer to your question (from a Zumobi engineer):
Unfortunately, Zumobi will not be compatible with the Omnia i910. The Ombia i910 runs a resolution that is different from the native QVGA resolution, making it incompatible with Windows Mobile.
Zumobi's current Windows Mobile product was developed when most cell phone hardware used a standard QVGA resolution. Now that many smartphones, such as the iPhone, are the center of the mobile world, the Windows Mobile team is working quickly to develop a program that supports larger resolutions. Hopefully Windows Mobile team will soon develop devices that will allow compatibility with future Zumobi platforms. Until then, Zumobi is meeting the demand that the iPhone has created - the amount of app downloaders that are iPhone users is so large that the majority of focus goes there.
First, hilarious that this person thinks the Omnia is incompatible with Windows Mobile.
Second, evidently Zumobi expects Microsoft Windows Mobile team to change their software to "allow compatibility with future Zumobi platforms." While I'm sure Zumobi is an industry giant, I don't see this happening, Zumobi.