pidgin privacy please is a pidgin plugin to stop spammers from annoying you. You can block messages from certain users, block messages from people who are not on your contact list, and suppress repeated authorization requests. Optionally, senders of blocked messages can be notified with an auto-reply.
desire-adhoc allows you to connect your HTC Desire smartphone to ad-hoc networks. It has been written specifically for the Desire and will not work on other models (unless they use the same network driver, in which case there might be a chance). It requires root access to your phone.
i really enjoyed this piece of software on early 2.4 kernels. unfortunately the latest release doesn't seem to work on current kernels (tried with 2.4.7) anymore. are future releases planned, and, if so, when?