Ok, back onto this subject - it's been missing for a while here.

I've looked at all the usual suspects and so far I'm liking a two-part solution.

Mint for wet sweeping and a new LG Hom Bot for vacuuming. The Mint seems like a serious product after looking into it. So much so that the Roomba folks, iRobot, have acquired them for a cool $75 Million. It has no self-docking or scheduling and is pretty much a manual process to set the thing down and tell it to start working.

LG by all accounts has the best mapping/guidance and cleaning performance. What it lacks is a home dock with its own much larger vacuum to empty out the robot. That used to be the exclusive domain of Karcher, but now Samsung and at least one other manufacturer are doing it too. It's too bad that Karcher's robot is insanely expensive, the base uses a bag and it doesn't have scheduling, and that Samsung's really sucks at cleaning.

Roomba is kind of out of the running for anything as their products command the premium name, but through research seem rather lack-lustre in performance and rather stupid. It's possible that once they combine the strengths of the Mint product with their two lines, Roomba and Scooba, they'll have some really great new products.

It's a shame Dyson have not entered this market with a solution similar in concept to the Karcher.