Response from the site administrator
purpleflux, 17.07.2012
Thanks for the suggestion, it's a great idea. I will definitely add it. I don't have a timeline for when that will be though.
By the way I made this for GTD in the first place but I tend to go through the recordings on the phone. In 1.7 I introduced a 'go to next recording on delete' mode (under settings, playback) so it's pretty quick to go through on the phone too. It may not fit your workflow, but it might be an option until 'upload all not uploaded' option is available.
And thanks for the kind words :)