I tried the new Metasploit Framework 2.3, it has 12 new exploits, new and improved payloads, improved performance, new msfweb interface and the best of all the Meterpreter (Meta-Interpreter) a new advanced payload, allows developers to write their own extensions in the form of shared object (DLL) files, that can be uploaded and injected into a running process on a target computer after exploitation has ocurred. So it never touch the disk!
It has 4 extensions now:
FS (cd, getcwd, ls, upload, download)
Net (Ipconfig, portfwd, route)
Process (kill, ps, execute)
Sys (sysinfo, getuid, rev2self)
It's a big step for the metasploit project, and it's really sweet ;)