hi, I just want to recommend webfaction and uwsgi again, even for hosting web2py.com :)
uwsgi is of version 1.0.21, and from version 1, uwsgi is optimized for low resources systems as WAS webfaction WAS, now webfaction increased RAM from 80Mb to 256 Mb (app RAM), also offers 100Gb space, 600Gb traffic - and the price is half of the Linode one and I think they handle some security for you (e.g ddos attacks) regards