Originally Posted by membbuser
Well, for now, T-Mobile tethering is free...
Actually, tethering on T-Mobile isn't free now (officially). They have been tagging high users with the addon charge but have 'ignored' the infrequent user. I use it infrequently on my 9700 if I need a quick connection in the field. On a call with #611 recently, they told me there was a charge for tethering.
Back to the point...
I think it is a relevant question about using the BB as a modem and can't think of why RIM would disable it but without a cable hookup it would require 3rd party software. But hey, those with Android 2.3 or iPhone can just turn on the hotspot feature and use the WiFi. Wouldn't that be a great advertising feature... Use your Playbook to connect through your iPhone to the web! Sorry, your BB doesn't support it!
A while ago RIM clearly said the feature was supported but recently changed the wording to make it quite unclear. For me, I think I'll take a pass until things are more clear.
It's beginning to look like a buyers market for Tablets later in the summer anyway.