Maybe not as huge a deal for Linux instances, but this is HUGE for Windows users. There's nothing comparable elsewhere. The cheapest Rackspace Cloud instance is $0.08/hour for 1GB. There is no faster, cheaper way to spin up a Windows server than AWS now.
Yeah, they're not going to run SQL Server. It's plenty for just serving up some simple stuff. I use the small instances mostly for testing stuff out with different configurations and running small short-term side projects. These will work perfectly for that.
Could you pay $14 and have a remote IE instance that the whole team can access no matter where they are, instead of using up your precious local memory on every machine?