i read on groundspeak forum a few people got whereigo apps working on their BlackBerry. i'm still looking for an OTA. i'll post it here when i find it.
Posted from my CrackBerry at wapforums.crackberry.com
I tried that link a week or two ago. It doesn't work with Verizon Tours. The developer thinks it would if he had the ability to sign codes with RIM's keys. There's not enough demand from Verizon geocachers to make it worth his time.