I hope this is the correct forum for posting this question -- it seems to be the only "generic" forum.

If I need to develop an application that:

- Is browser driven (ie. either locally, on a network, or via ASP model).
- Can be ported to a PocketPC or run on a laptop and synched with the network or ASP system.
- Requires multi-user access.
- Needs to be robust to handle a large amount of data quickly.
- Must have HL7 messaging capability (in and out) via socket connections.
- Needs to require a fairly quick learning curve.

What would be the most appropriate (and, if possible, the simplest) development package to use? Is there an all-in-one that will accomplish this?

I know -- I'm asking for everything here.

Thanks in advance for any guidance.

Ryan