rooting - Preventing mobile data use for select apps on non-rooted phone?

I have a number of apps that are fairly chatty on the network, and with a limited data connection I would like these apps to not use the 3G connection (WiFi is fine).

I know that rooting the phone and installing DroidWall would do the trick. However, is there a way to accomplish per-app data permissions without rooting it?

FWIW, I have a Droid 1 on a CDMA network.