Our friends over at BT recently released a beta of the Web21C SDK for Microsoft Visual Studio. This SDK consists of a bunch of cool .NET APIs that provide access to BT services such as SMS, presence and voice calls.

But if that's not enough, they've taken this one step further by building an SMS Trace Listener that plugs right into the Enterprise Library Logging Application Block (either 2.0 and 3.0). I'm still waiting on my registration code for the Web21C SDK before I can play with this, but it looks easy to use and pretty damn cool :-)