Clever use of app engine to poll Heroku. :) <shameless plug> You might also want to check out PiCloud (http://www.picloud.com/product/#features http://www.picl

Clever use of app engine to poll Heroku. :) <shameless plug> You might also want to check out PiCloud (http://www.picloud.com/product/#features http://www.picloud.com/product/#features), which offers low-cost pay by millisecond python-based crons</shameless plug>