Quantopian: Start Your Algo’s
As blogged about previous, Quantopian is now in beta – but currently only for US stocks. Python appears to be the language of choice – similar to a few of the tier-1 banks initiatives in the last few years. I don’t see any latency data on the site 
“Our goal is to handle all the infrastructure, data, and setup tasks so that you can focus on” -> delivering your findings to us. Oh no, wait, we have your code already on our servers, no need to deliver anything.
Seriously, I follow your posts with much interest but I believe this piece of software really should not warrant your or your followers attention. Minute bar data is all they got? Any mentioning they have a license to utilize the data in compliance with the exchange regulations? Sorry I find it hard to take a service seriously that offers to run algorithmic tests on THEIR computers and their fines granularity of data is minute data.