If this doesn't scream mainstream adoption, I don't know what does. You can now buy a Raspberry Pi starter kit from Maplin, which will set you back a pricey £70 -- you did want a keyboard, mouse, and a Wi-Fi dongle with that, right?
In time honoured tradition, Maplin is bundling the cheap Pi with accessories to try and carve out some profit for itself. The SD card and Wi-Fi dongle, fair enough, but a keyboard and mouse? It's not like your granny's going to be buying it; surely you've already got a USB keyboard and mouse knocking around?
Anyway, if you haven't gotten your hands on a Raspberry Pi yet, you've got another option, even if it is a bit pricey. [Maplin]