distributed key-value stores

NOSQL rallycry for the distributed key value stores a.k.a distribute cache a.k.a. big hastable in the cloud. Didn't you know RDBMS is sooo last century? Not that the DB-vendors are going to be shaking in the boots anytime soon. RDBMS is going to be around for a long long time, but lets face it they just aren't sexy and there is lots of interesting technical stuff going on in the grid world.