Soon, T-Mobile will be set up to allow corporate customers who use Blackberries to make calls over their office Wi-Fi connections without using up cell plan minutes (hey, this sounds familiar).  Then, as a neat trick, the call will be automatically switched to T-Mobiles network after said Blackberry user is outside of their Wi-Fi network’s range.  T-Mobile “will charge a flat monthly fee on top of cellular rates,” all in an effort to persuade business customers to cut the cords on their landlines (and save money while doing it).  Tell us what you think about this feature in the comments!

MobileCrunch