v2.7 has just been uploaded for review ready for sale next week. A quick lowdown:

Added
✩ New deck list display showing stats
✩ Colour chooser in list view (swipe finger over word)
✩ Export function copies deck to clipboard
✩ Shows both kun/on yomi for compounds and "similar"
✩ TAB button in the import view
✩ "Down" button in edit sticky view speeds up entry

Changed
✩ New study alg. avoids same card twice issue
✩ Overall performance increase

Fixed
✩ Bug causing blank screen on low memory
✩ Dropbox clash when more than one SS app is installed
✩ Slowdown when studying for very long periods
✩ Rename deck crash
✩ Lock rotation bug fixed when returning to the app
✩ Other minor bugs