Speaking from the standpoint of someone who has entered blogs over the PS3’s browser and tons of messages across Xbox Live, I can say that their online keyboard is just about the slowest thing you can possibly use to enter information.
Even when you get the strap-on keyboards for the controller, they’re still not that awesome. The ergonomics suck for thumbs and it changes the whole feel and weight of the controller. Enter Circboard, a company who wants to change that. I’ll let their video speak for itself.
For further information, check out their website as to when the PC trials will be going live.