[jitix]

Looks great! Will surely use it for my next project.

Few suggestions:

1. Implement multiple ways to login (and charge accordingly) e.g Keyfile based, Color combination based, Biometric based, etc.

2. Do cross-platform API. I know you might think that BB is a sinking ship but to be ubiquitous you service needs to have an API on EVERY platform.

3. (This is more technical) Shard your db based on the location of your customers and accordingly replicate your data. e.g. If I launch a webapp hosted in India, I obviously don't want my customers to hit sweden or US every time they login (with the undersea cable breaking every now and then). If the India mirror of your service goes down then there will be graceful degradation (users will login slowly by hitting the other replicas) but not a full downtime. Basically for a customer X running webapp W, the primary replica should reside in the vicinity of where W is hosted but backed up by replicas in other locations.

4. Introduce a free development tier for upto 4-10 users.