Hello D3D,
1. Documentation,
http://centillex.com/jackstart/docs/FAQ,
http://centillex.com/faq.html2. Pricing,
http://centillex.com/orders.html3. Never ever locked-in

, after packing, you game can be deployed on the URL you specified. JackSTART is a technology, not a marketing technique to force you to publish game with us, so don't worry.
Cheers,
chanwit