When I first saw the Nanoscope at Target, I thought "Another virtual pet game?". Oh no, not quite. This is what Pokemon should of been, in its own hand held gaming device. Nanovor is a new kind of battling pet game. You use Nanocash to purchase online booster packs, several different kinds of which you can choose from in fact to build your "swarm". I'm not going to get too detailed here, but you can evolve them and collect rare Nanovor. Basically you battle with them in an online game. You install it it the included DVD to your PC, make a free online account, and go from there.
The Nanoscope is for offline play and includes several mini-games and a tutorial. You can download your swarm to your Nanoscope for offline battles as well. It can connect via USB (cord included) to your PC so you may transfer your Nanovor back and forth, and including the ever important "Jolts" (which are earned via mini-games) to maximizing stats on your Nanovor. It's an incredibly detailed system for such a small screen, an LCD with 1000's of animations.
You will need Nanocash. There is a code card that comes with the 'Scope, you redeem it online. There is also limited edition packs that include figures and can be purchased in stores that include Nanocash; there are also cash cards but you don't have to buy them in stores. How much you will need depends on your playtime and willingness to put in the money and effort to build swarms.
Nanovor is a very addictive game. I know people in their 40's playing it, so it's not just for kids. Anyone who has ever gotten into the MTG card game or anything similar should find it to their liking. There is a lot more strategy than just pressing a few buttons.
Do yourself a favor and look it up. It may not be for MAC users, but giving Smith & Tinker the benefit of the doubt for a very good game gives them an overhead, as they may release it in the future. Updates are made pretty often to the software. The only complaint I have is it took so long to install, but well worth the wait. Any customer service or questions I have had have been answered promptly.
Battery life and the durability of it is pretty dang good for such a great system. It comes with it's own case, which I am quite impressed with. I find myself playing it more often than my DS, though I do wish the screen was a little bigger.
Give it a whirl, you or your kids won't be disappointed!!