[legaleye2005]

I know you can't use the native email client, but I plan to use the GMail app anyways. (I switch between phones so I don't want the BB plan; just my total internet plan).

Besides the native email app, does anything else not work? Can I use App World?

Thanks

[dc/dc]

Nothing is guaranteed to work if you don't have the BlackBerry data plan.

That said, why not switch? The BlackBerry data plan works in other phones. It has un-proxied access just like Total Internet.

[jsconyers]

You won't be able to get push email, use BB Messenger, BB Browser, App World, etc. Check these links out:
What do I need a Data Plan for? - BlackBerryFAQ

How to use BlackBerry on Generic Data Plan - BlackBerryFAQ