I am using the MVP-only pre-CTP5 release.
Intellisense will show the parameter list for a sproc or function in a helpful yellow box. I know that because I've saw it yesterday. HOWEVER, try as I might I CANNOT get that parameter list to appear on demand. CTRL-J doesn't do it. Hovering over my SQL statement doesn't do it. If there isa command to make this appear then I must have pressed it without knowing it yesterday. If there isn't a command then why isn't it displaying for me?
Similarly, typing "exec " followed by CTRL-J doesn't bring up a list of available sprocs.