Binary ClockGive a gift that can be useful or just fun with these geeky iPhone applications that cost less than $10. Since the only way to give iPhone apps is with an iTunes gift card, you can include a list of apps that you think the receiver will enjoy. You can use this Geek Gifts list as a guide. For the complete review of these apps, read the TechRepublic Geekend blog.
Binary Clock by Peter Elst: This very geeky app shows the time in binary. Cost: $0.99