"Connect My Mac" is the only iPad app I can remote into Lion flawlessly so far while VNC only works 1 out of 10 times. The only problem I have so far is that I can do multiple logins to my 2011 Mac mini server without freezing up the screen, but I can't do the same thing to my old 2009 Mac mini running Lion client. Does it have anything to do with server vs client or dual-core vs quad-core? They both equipped with 8GB RAM by the way.