Re: we'll have splattered repeater Rosetta. D'oh.
There's little choice - Rosetta isn't in an orbit, the comet doesn't have enough gravity - Rosetta is being flown around the comet in arcs (IIRC). A gentle touchdown would at least keep Rosetta on the comet, but than a high-speed crash would be more totally awesome!
I'm not sure from this reporting what sort of `landing' will be attempted. I suspect, from the Philae attempt, it'd be a bit of a lottery anyway.