Just wanted to bump this post a bit. With the increased popularity of low(er) cost GPS devices that can be connected to phones and tablets via Bluetooth, I think recording the elevation and other GPS metadata will be increasingly important. Curious if any Esri employees can share if any of these features will be in an upcoming release.
I work for the GIS department of an engineering consultant that does in-house work and our own contracting. We upgraded to a sub-cm(they say) external GPS receiver that connects to an iPad with the hopes that a- we could bypass the middle steps of setting up, collecting, post-processing, exporting to SHP b- improve the sub-meter capablities of our Trimble GPS units.
Finding out that Collector didn't collect X,Y was somewhat baffling, though easily corrected with the Add X/Y command.
Z value's from GPS receivers isn't as accurate as their hortizontal X/Y partners, but would be nice to have, especially with how fast technology is moving.