The 2009 and later minis can actually drive the 30" at full rez using a miniDisplayPort to dual-link DVI adapter. The original Intel mini can't - the GMA 950 really isn't good enough for anything.
BRB returning to work on my time machine so I can send a GMA 950 back to 1976 to go and power the Apple I and change the course of history… oh no, the authorities are at my front door, they found out about my experiment!… oh never mind, they just came to tell me that the GMA 950 can’t even handle the Apple I, and I should continue on with whatever I was doing…