Ok so I know this is a Linux blog and it seems like all I keep writing about is Windows software hopefully this will be the last app for awhile.
Anyways I dont know how many people need a good application to do RDP, Telnet, SSH and VNC on windows but if you do then I suggest mRemote. I have found the app on LifeHacker and been using it all day at work. I have to say I am very impressed with it.