Custom forms that pull from remote datasource

[#1]

I'm sure this is a bit of a long shot but here goes.

I would love the ability to create my own custom form controls that I could tie to some sort of remote datasource. Imagine being able to build a form field that runs a lookup from a remote server to select from a list of values. This would have to have the ability to at least pass out the task object code and ID number to the remote data source as well.

[#2]

Building on this:

As a Requestor using a Custom Form, I'd like to:

• select field values from a list that is populated from external data sources, so I am picking from the most up-to-date values.
• select a value for Field1 that dynamically narrows my available choices for Field 2, so I can enter form information quickly.
• type ahead in a field and narrow down the list of remaining available values, so I can find my value quickly.