First, I love ArtRage! Some of the stuff I'm able to produce on my iPad actually looks good enough to sell.
With that eventuality in mind, I always like to start with as large a size as possible, and always with the script recorder on so I can export the script to Studio pro and blow it up even larger on my MBP. Therefore, tops on my wish list would be a non-volatile, user-defined size setting so I don't have to type in 2048 over the default pixel numbers each time. Tedious, and fraught with peril under my errant fingers.
Likewise, and perhaps even more importantly, can't we specify that the script recorder be turned on by default for all new paintings? I forgot to turn it on twice in the past three days, leaving me with two paintings stuck in the largest size iPad can produce, too small for sale.
Would love to see these features in an upcoming update!