Just today, Microsofts new remote desktop application became available in the App Store. The program works in a similar manner to other remote desktop applications such as Splashtop and it is completely free.
For more details check it out in the App Store
•Access to remote resources through the Remote Desktop Gateway
•Rich multi-touch experience with remote desktop protocol (RDP) and RemoteFX supporting Windows gestures
•Secure connection to your data and applications with breakthrough Network Layer Authentication (NLA) technology
•Simple management of all remote connections from the connection center
•High quality video and sound streaming with improved compression and bandwidth usage
•Easy connection to external monitors or projectors for presentations