Editing photos on iPad

I have just bought a new retina iPad

After looking for packages I bought the SD card uploaded, adobe photoshop touch for editing jpgs (intend to edit jpgs only in the field, will edit raws when I get home) and flickrstudio to upload to Flickr

I have found a few things:

1. Not found good package to be able to batch resize on iPad (flickrstudio's resize is broken)

2. Adobe photoshop touch ok for editing single picture but slow for editing multiple pictures in one go. Saving options also not clear

3. iPad seems to put gunk files onto SD card (like iMac) which causes xpro-1 to take 30 secs to start up... Solution is to put write protect on card when inserting into reader

Anyone got any good tips or packages for editing xpro or x100 files directly on iPad ?

Many thanks