There are two different quetions here. One is Wii to Wii. If you had your networks setup and one ran client and one ran a server, it would work regaurdless of whether they are across the internet or on the same LAN. Same goes for the other case: two Wiis connecting to a common server. The server and be on your LAN or it can be out an the internet... You could have one Wii and your server onby achanler - Software
One more note. Say you had 2 alkaline AA batteries in series to get 3 Volts. That would supply about 2700 mAh at 3 volts. And run the ADXL335 for almost a year. Once again the mAh values are coming from wikipedia and in reality change from battery to battery. "(2700 milliampere * hour) / (350 microamperes) = 321.428571 days"by achanler - Hardware
Take a look at the data sheet (pdf file) to see how much power it draws and the recommended circuitry. It runs off of 3.3 volts and draws 350 uAmps. And the CR2016 has about 50mAh (milliAmp Hours) according to wikipedia. So if that is the case, the CR2016 could run the ADXL335 for 5.9 days. So depending on your application, the CR2016 might be good enough if you don't mind changingby achanler - Hardware