Whether you use an iPod Touch or an iPhone there is no denying that the iTunes app store has tons of great applications. I already have many favorite iPhone apps that I just couldn’t live without.

The funny thing is, I live perfectly fine without the 3G services or AT&T’s expensive telephone rates. The iPod Touch’s wi-fi gets me online most places and if I’m outside of wifi range and really need to I can just check my phone. While it is a bit outdated, my Treo was probably the best Sprint smartphone available before the EVO came out and while I’m well over the honeymoon phase (and it just doesn’t have as many apps), it still does the trick when I really need it.

That said, let’s get back to some of those great iPhone apps. One I can’t live without is the New York Times. In fact, I love reading the NYT so much every day that I’ve toyed with the idea of buying an iPad just so I can read the news on a larger form factor. Of course, the iPad would also mean I’d have much more fun reading Marvel comics – which are available on Marvel’s marvelous iPhone app.

Another app I love is the Priceline application. This is great when I’m traveling. Often I can even just stop in the parking lot of whatever hotel or motel I’m considering and use their wi-fi to check the Priceline Negotiator for rates. This saves me time on finding the cheapest decent place to stay when I’m in a town with dozens of motels near a freeway exit. And if I want to get an even better deal, I can just make a bid and see what comes up. Once I win the bid, I just need to turn the engine off and go inside.

iXpensit is another great one, if you are looking to keep track of your expenses and budget. It keeps my spending in line and also is a big help at tax time.