Google introduced their cloud application platform called AppEngine (beta!!) yesterday and TechCrunch already have their experience posted here . The capabilities and the reviews are awesome and this one is a real big threat to Amazon’s S3 services. Amazon had been facing scalability issues recently and there were a couple of downtimes. If Google can match their scalability statement then they will be pretty hard to beat!
Ofcourse! this is a beta version and its limited to first 10,000 developers. I tried signing up today but was put on wait list so definitely there is huge developer interest. I now got to wait for my turn to play a little, hope its not too long!