I used targetplot for years but decided to go back to paper about 2 years ago as it was giving me more info than I wanted during a shoot and I found if a pain to see in sunlight (Zire 71 and previously on a Palm3).
I find the simplity of paper records less intrusive.
Strange this as I'm gadget crazy!
I am pretty much in the same position. While not gadget crazy, I do like toys....I even wrote some small applications for the Palm (see below).
I have returned to using paper at the moment too, since I want to try and concentate on my shooting, and I was finding it distracting trying to see the thing in sunlight
I wrote a handicap/classification calculator for indoor and outdoor rounds (for my own use, since the handicap tables are copyright, and I do own a copy).
I have also written an application (looks superficially quite like target archery suite) to allow you to plot your numbered arrows up. I have also written a conduit application (to automatically pull the data off), and a PC based analysis program to then plot all the arrow data, and analyse it to pick best arrows. (Just imagine if you can pick the best grouping set of 3 arrows for indoor, and you can pick up just 1 point every other end, then on a Portsmouth you can add 10 points to your score).
Having said all that the Palm is a lovely device, and I will probably return to Target Archery Suite (at least indoors).