Drawing applications for the iPhone include Brushes and NetSketch. The Telegraph in the U.K. has posted a gallery of images created on the iPhone.
AllTechRelated has a great list of free TV show-streaming web sites for the iPhone and iPod Touch. It's amazing what's available. I hope I'm not pointing you to something illegal, though some of the sites are obviously legitimate, such as the offerings from NBC and ESPN.
Update: this web page lists 3 Click, but as of a few days ago, the back door that someone had discovered to access the site for free was closed. Just as well, since I don't want to point you to anything that's not legal.
iSmashPhone has a list of 12 iPhone tricks that I think is quite useful. You may already know some of these, but the reason I like this list is that these are tricks that most everyone should know because they make little things on the iPhone easier or more efficient. For example, if you press and hold the .com button, you'll get the option of selecting one of the other common domain suffixes: .edu, .net, or .org.
Smule's Ocarina app, which lets you play your iPhone like a flute, has been a surprise hit. And their recent contest has ended, with 10 Ocarina performers each winning a $1,000 prize. You can view videos of the winning performances on Smule's site.
MacRumors reported this week that Apple, in a major policy shift, has approved third-party web browsers and utilities and that the iTunes store has begun making them available.
I hate to spread rumors .... but this one's good. Maybe too good to be true. I like the idea of tethering — connecting your laptop to the Internet via your phone's data capability when there's no Wi-Fi or other connection available. It's been rumored for some time now that AT&T and Apple are planning to make this available for an additional monthly charge of $30. Ouch.
The good news is that iRinger is free and that it lets you create iPhone ringtones from almost any source. You can even extract audio ringtones from videos. The bad news: the app is only available for the Windows OS. (There's a certain amount of irony there.) Once you've created your ringtones, then the application exports them to iTunes. You can Adjust ringtone length, volume, fade in, fade out, and loop gap, as well as add audio effects.
Wi-Fi Finder, which was released last month, is an app that lets you easily find wireless hotspots — both free and paid. It taps into a registry of 200,000 verified hotspot locations in 135 countries. You simply click "Near Me," and Wi-Fi Finder uses the built-in GPS on the iPhone or the iPod Touch's triangulation capability to find hotspots near you.
Sling Media has a really cool product that's long been available for other devices. It allows you to watch all of the content on your TV on your device — live. You connect their Slingbox (which costs anywhere from $180-300) to your TV inputs (such as cable or satellite) and to your Internet connection. Then with Sling Media software on your device, you're able to access your TV channels on your iPhone wherever you are.
Video reviews are pretty handy, especially game reviews, because you get a chance to see the software in action. Apple iPhone School has posted over 50 video reviews in iTunes. Most recently they've covered the games SimCity, Burnball, Space Deadbeef, Field Runners, and Topple.