I'm on the verge of buying my first PDA and ballistics program. Read much about how great EXBAL is. It's a contender. Over on snipershide.net, many extol the virtues of Field Firing Solution. I've read both their web sites. Both sound quite cabable of giving me what I want/need. It seems the FFS has a couple of advantages, those being I can create my own turret and BC tables based upon my actual scope/s click adjustments and a bullets true performance in my rifle. It seems a disadvantage is the FFS is non-Palm capatible. Having never owned a PDA, I'm not so sure that will be a limiting factor for me, except my wife knows I want a PDA for my birthday next month and she knows her brother is a techie and has numerous Palms he does not use; thus she might get one from him (cheap or free). I have a month+ to find out. Based upon what I get, my decision may be made for me. Another thing, I searched my local electronic shops for Windows based PDA's; nada, nicht, none, no-where-to-be-found. It's all Palm unless I want to buy a pricey Treo cell phone and the monthly internet to go with it. "Ain't happnin"! Opinions?