I'm really disappointed in the new Google Lunar Xprize.
It would be a great prize 10 years from now, but today it just illustrates the core problem with space access. The high cost of access to low earth orbit.
The grand prize is 20M only twice what the original x-prize, yet the problem is at least 100 times as hard. I can't imagine what group or company would go after this prize.
Even if it is won, I fear it will not add much to reducing the cost of access.
It might be done as a stunt with a 500 gm Microrover.
I fear it will be a cool footnote, and will be a lot like Bigelows Americas space prize, The ratio of difficulty to winnings is just too high. (I personally think that Bigelows prize is of similar difficulty to the Google Lunar Xprize, and is twice the $$)
There are a number of firms working on high performance sub orbital aiming toward orbital launchers , Armadillo, Garvey Space, Micro-launchers, Masten etc...
If the intent of prizes is to encourage space exploration, A prize to encourage transport development would be so much more useful. I'd like to see a prize for a reusable orbital launcher, just something to launch 350 gram can sats.