Originally Posted by Dejv
hm this is crap
why on htc I can use everything and on blackberry not hm ..
An HTC device is not a Blackberry device. If your Blackberry device has Wi-Fi capability then you are able to access the Internet just fine while connected to a wireless router/access point.
Google Maps is not set up to take advantage of Wi-Fi yet to my knowledge so without some sort of data plan, which T-Mobile prepaid does not offer for Blackberry as far as I know, it won't work.
The ICQ client that comes on a Blackberry device *should* work unless the 8310 is like the 8320 and the IM clients that come with the device use data and not SMS messages.
Opera Mini should work fine if you're able to get a Wi-Fi connection on your device.
I'm not familiar with the GPS application you talked about so you'd probably need to contact the company that wrote the software for support.