what competes with this? http://xeround.com http://xeround.com is a separate DB service, also heroku plugin. It is MySql-compatible, apparently they've wrote a

what competes with this? http://xeround.com http://xeround.com is a separate DB service, also heroku plugin. It is MySql-compatible, apparently they've wrote a custom distributed engine. Its is located on AWS or rackspace, so latency is quite low. Since xeround is pay-as-you go, if your initial DB requirements are low, you can run it on something like http://fluxflex.com http://fluxflex.com (which heroku-like PaaS, also AWS-based) and have 10 db-backed apps for something like $3 per month that will scale up when needed.