It seems from reading the feature list, that data fields can't grab external data (say by connecting to one's smartphone that provides a channel to a networked service). Only Widgets and Apps can do that.
But I know, for example, XERT data fields somehow connect. They indicate when a valid connection is open, during an activity. And credentials are entered in the data field's settings (username and password).
So - what technique do they use (or better phrased - what technique can be used) so that a data field can grab data from a web service, via the device's connection to a smartphone that has service?
Thanks!
