I'm game. Though I'd have to second starting a bit higher (6-8). The thing about PbP is, it's much
slower than tabletop. Even progressing fairly quickly, going up one power level may take a year, and it's extremely generous to predict a game will last that long, so it's generally wiser to start in the thick of things rather than giving that up-front growing time. PbP games've gotta pop from the get-go.
Sounds like a good idea-- I love low-powered games, as it forces the player to really focus on their CHARACTER rather than their uber-powers. I'm interested, but haven't played M&M very much, so I may be more burden than not. Anyway... consider me 'interested' but not 100% 'committed' yet.
You do know this is a game where you can quite literally destroy the world with a single power point, right?
I'm interested but it's hard to come up with anything but a 'batman' @ PL 5.
Eh, it's not too terribly tough to get something else, though with so few points, it does rather encourage keeping your base ability scores average or even mining 'em for points, since there's not much wiggle room and the game does rather punish actually taking ability scores other than Constitution and maybe Strength. But most of the standard major archetypes still work.