Ubuntu 10.04, EC2 micro instances, and ephemeral storage - http://www.benjamingolub.com/ubuntu-...
If you are just using it for off network debugging, you can usually get better deals from http://www.lowendbox.com/. I ended up getting one from ramhost.us - I pay like $4 a month, and I don't have to worry about bringing it up when I need it (edit: no affiliation with either company) - Nick Lothian
That is a good deal. But I think this is better for something I need infrequently. Let's assume I use it for one afternoon a week (that's probably high): $1.5 + $0.02*4*4 = $1.82. Most of my cost is actually for the storage. If I could figure out how to reduce the root EBS from 15G to something more reasonable like 5G I could get it to < $1! - Benjamin Golub
To help me remember to shut it down I made a simple cron job to email me if it's been up for 4 hours. - Benjamin Golub
True, but to me having it up all the time is worth $2.50 a month - Nick Lothian