Anyone using any phone apps to record expenses for gnucash?

[Lovius]

The last mobile thing I used was an Apple Newton I and that put me off 
using small gadgets for a while but I start to get itchy fingers again.
I have been using receipts and a little note book to record personal 
expenses at the moment, and then manually enter them in Gnucash.

Has anyone used a phone app to record details which can be uploaded to 
Gnucash?
Or what?


Any ideas remarks would be really welcome, on this vague question.