Awesome, thanks for the response -- the info on their site was a bit minimal. IP failover would be a big win, as would slave-based flushing and the "live" upgrade of available memory like you had mentioned int he podcast. Anyway, redis kicks ass, keep up the good work!
Hopefully we will add more info in the next few days, truth is we had way more signups than we expected (a good thing!) and we have to take care of a lot of things. Future is bright and reliability is the are where we want to put more effort.
