Am i the only one who doesn't understand why someone should use a memcache/redis instance hosted by a third party?<p>I've never used this kind of services but the first impression is that just the RTT between your server and the third party's one will have a huge impact performance-wise, removing every advantage you could have from the use of these DBs.<p>And what about security? Are memcache/redis/mongoDB/etc... made to be exposed to the public internet (requests <i>content and format</i> are carefully inspected by the server and during development, the implementation have been tested carefully with fuzz testing or similar techniques) or these hosted solutions add an additional layer that increases security/safety?<p>These issues could be mitigates (not resolved) when both parties are on the same platform, but not everyone is on EC2/Heroku.
IMO the appharbor add-ons page is a poor replication of the already poor UX of the heroku add-ons page.<p>I get that your a heroku clone but it probably wouldn't hurt to show a <i>little</i> innovation.
Nice that they have add ons and pricing for them but I wish they'd sort out their own <i>preliminary prices</i> first...<p><a href="http://appharbor.com/page/pricing" rel="nofollow">http://appharbor.com/page/pricing</a><p>Until there is solid pricing and a decent story around support it's very hard to use for anything that matters.
I'm not to familiar with .NET, but it is interesting to see other providers come up that are similar to Heroku. The add-on system that is developing is great. All of the providers are specializing in what they do best.