Taym, those are close focus shots and will appear with out of focus backgrounds on pretty much any small camera. It's the easiest way to isolate DOF on any camera. Likewise for macro-style close-focus.
With a big lens on a big sensor, you could obtain a relative sliver of focus when focusing much farther away.
Yes, I realize they are bad example in the context of what we were discussing (DSLR and Compact). Just carried away with the DOF idea. They were actually taken using the macro setting on the G11.
Anyway, I am now seriously considering 7D + EF 24-70 F/2.8L USM.