for iphone

There are several RDP clients available for the iPhone.  The one pictured above is WinAdmin from Carter Harrison.  It is the most complete RDP client we've seen, supporting Windows XP Professional all the way to Vista Ultimate and Windows 2008 Server.  It supports multiple screen resolutions, thousands of colors, multiple concurrent connections, right-click, keyboard, and even a little bit of copy and paste (which iPhone itself doesn't seem to support).

There are other offerings besides this one, including a free RDP client from MochaSoft with limited functionality that would certainly suffice in emergency situations.

If you're an IT professional still hanging onto your Windows SmartPhone because of its terminal services client, like I was, you can now safely upgrade to a much, much better phone.