Registration More Usable and Sensible

Our goal with registration is to identify a user, allow them to come back, and to give us the information we need to serve them properly.

It's also an important time for educating the user: we know that they're at the start of the learning curve.

So:
1) As they focus on each field:
- Why we need that

2) After we have basic details, give them an opportunity to quickly add groups of which they are a member, and then groups in which they have an interest - search and click. Or maybe some AJAX here could be useful.

3) A page after that to show them what they can do next.

4) Ask them if they want a PocketPidge.

5) Signpost the whole process - let them know how many screens there will be, and where they are in the process.