To Uninstall, goto Start->Programs->PocketRSS, from menu do; Options|Uninstall.

To correctly uninstall PocketRSS, you must do the following steps...
1) Save work in currently open apps.
2) Press 'Uninstall' button.
3) Perform a soft reset.
4) Use ActiveSync 'Add/Remove Programs' feature to complete the uninstall.