From what I understand, the new 7100t uses OS version 3.8. Also, to get the public MDS features from providers we all require 3.7.1.41 or higher.

This definately means that 3.8 or higher will have built in tcp/ip stack capability to allow IM apps to work..

Unfortuantely on my 4.0 only HTTP browsing works, the other apps aren't working, but in due time we will all have it officially released and be free of the restrictions that have plagued us for so long.