Something like DiskAid seems the way to go for moving sets of files over, but if you use Dropbox, you can navigate to a file in Dropbox on your iPad, then tap Open In... and select Pythonista. This brings the file into Pythonista and seems to place it in a special folder named Inbox.
From there, you can move the files to where you want them.
PS: Thanks cminton for the pointer to nflgame - looks sweet.
Oops, just noticing that this thread was in fact started with a reference to the techBASIC BLE feature - haha.
Anyway, love to see Pythonista get similar capability.
I am brand new to Pythonista, just discovered it, very psyched about what it seems capable of already.
+1 for a library to access Bluetooth LE.
Another iOS app, techBASIC, provides this - it is sweet.
But, of course, I would far prefer to work in python. ;-)
I have no experience developing hw protocol libraries, so probably not the right guy to start such a project, but I would be happy to help however I can - use cases, testing, doc.