Originally Posted by greggivan
Is it necessary for a BB (say...one thats purchased as unlocked off eBay) to have a carrier plan in order for the wifi to work?
Depends on the carrier. Some will provide the handheld with the necessary service books pre-installed on them. Some won't.
You might want to look into using the BlackBerry Device Simulator and save yourself some $$.
You should be able to get it in the BlackBerry Developer section of RIM's website.