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.
Night Time Display is an Android client which displays the current time in an LED font. It can be used as a bedtime clock. It has a custom set of themes to view different font colors, can change to 24hr/12hr mode, can hide the seconds, can blink the separator, displays a large font and is stretchable according to the screen size, and supports both Landscape and Portrait modes.