ARKconcepts Network Suite is a tool to help you with various networking needs. It provides the following features:
* TCP connect
* HTTP connect
* Current DNS lookup (uses domain’s own DNS server)
* DNS lookup using custom server
* Reverse DNS lookup
* WHOIS information lookup
Most of those actions are done using a remote server since WP7 does not yet support them natively. The HTTP connection, however, is done locally and allows you to connect to internal machines if you are on Wi-Fi.
I'm looking forward to MIX11, where Microsoft will hopefully announce proper socket support so that Network Suite could be fully functional without relying on a server that I have to pay for
That said, I still have a plan to allow for LAN network analysis even without good support for sockets from Microsoft. It would just be more complex to implement.
Here's the Zune-launching link for the app.