Some stuff I use that I didn't see mentioned:

MenuMeters: http://www.ragingmenace.com/software/menumeters/

Hyperspaces: http://hyperspacesapp.com/

Yojimbo: http://barebones.com/products/yojimbo/

Leap: http://www.ironicsoftware.com/leap/

I like the simplicity, but not sure how will monetize it? Maybe offer it as widget for other sites? Or perhaps create a FB app? Certainly lots of potential. And people really like clicking buttons.

"Go ahead, click the button... That'll be ten million dollars."

Hmm, that's odd. We got three slices in early May and it took them 4 days to get us up and running. I have nothing but fantastic things to say about EngineYard. Worth every penny.

Everyone says the service is great, but I have filled out the web form twice and no response.

my experience with them hasn't been great. They caused our site downtime on numerous occasions due to oversights on their part.

SpeedyRails shared hosting's 60MB per mongrel isn't a whole lot of headroom.