I managed built a full node on RPi and spent the time to catch up with the network. Since it took a while, I thought it would be of a value to the community if I offered up an ISO image or something like that to save time and hassle for anyone who would need it. I have 2 questions in that regard:
1) What would I need to strip off to remove my personal addresses and make it usable by anyone, and
2) What is the best utility to create an ISO from a 32Gb SDHC?
It would be most useful to have this done with 0.8 (which is not out yet) since it has much more efficient blockchain management. (e.g. far fewer writes)
Removing wallet.dat, debug.log, and database/ directory (shut down cleanly with the detatch option first), and system logs (e.g. /var/log/messages/*), and then fill the empty space on the media with zeros would remove your personal information, someone who received it from you would need to trust that you did not compromise the blockchain (or the software! for that matter).
You can create an image of the SDHC card by connecting it to a GNU/Linux system, and running dd if=/dev/sdb of=rpi-bitcoin.img where sdb is whatever device the SDHC card showed up (see dmesg output).
I would not recommend using an rpi for mining simply because it's quite slow and might result in a higher orphan rate— if people are looking for a low power mining solution there are a number of much faster arm boards (and bitcoind will soon use multicore fairly effectively for validation) out there, and small intel x86_64 systems can be quite power efficient especially with power management enabled (w/ bitcoin a node can probably spend a lot of time in low power mode).
Note: there have been some rare crashes on arm with current code that have been reported but haven't been tracked down yet.
