Since this is has moving parts in it while are more than likey going to fail at some point, do you still need to carry a reserve oxygen tank? Does the device generate oxygen fast enough that if it does stop functioning, you have enough oxygen to get back to the surface?
I saw an article earlier that talked about hydrogen pellets but they were using them to recharge laptop batteries. It could be similar technology but this article talks about how it works. http://news.uns.purdue.edu/UNS/html4ever/2005/0508 28.Varma.fuelcells.html
Since this is has moving parts in it while are more than likey going to fail at some point, do you still need to carry a reserve oxygen tank? Does the device generate oxygen fast enough that if it does stop functioning, you have enough oxygen to get back to the surface?
Sure.. if you get rid of those pesky lower layers, data just zooms along.
There is also another version of YaBB called YaBB SE (www.yabbse.org) that uses PHP and MySQL but has some of the addins from YaBB already in there.
..and 640K should be enough for anyone.