I had the exact same experience.
Mobile Chess App for Blackberry

Do you guys point your mobile to chess.com/mobile? Cause I just did and the new version 2.0 came down just fine.

Most likely the freeze is caused by the missing APN settings. However I dont know where to set that on a Blackberry.

Does anyone know what letters control the curson on BB storm in potrait? In landscape it's Q, spacebar, C, R, S, L; the potrait view as multiple letters on the same key so the above doesn't work. Incidentally, I am running version 2.1 and it works quite well except the keyboard covers the screen in landscape mode.
Today (5/4/09) I downloaded the new version of Chess Mobile (version 1.2). When the installation finished I ran the application and the main screen popped up as usual. However, the application still claimed that a "newer version was still available" and that I needed to upgrade.
I tried reinstalling the application. No help. I tried removing the application altogether prior to installing version 1.2. No help either.
Anyone else having this problem?