At a minimum, you'd need to spend a stack of cash verifying that the EULA of the cloud compiler didn't include a "ALL UR INVENTIONS ON THIS ARE BELONG TO US" clause - would be only prudent given how intent the company is on planting its flag in IP.
Such paranoia is amply justified in our industry. However I expect that we will continue our iconoclastic approach to legalisms so long as the founders keep control. Our model for our cloud software follows the example pioneered by Greg Comeau; you can see his at http://www.comeaucomputing.com/tryitout/.
