I'm kind of a travel app junkie. I don't use just one, as a consummate deal-seeker and tech nerd. So this week, I thought I'd share four of my favorites and ask you for yours.Earlier: Stuck in Atlanta with the Delta App So, which travel apps do you find my useful? For me, I use:TripIt: More than just a booking site, TripIt is an all-around travel organizer with one key feature: It recognizes confirmation emails sent from airlines, Amtrak, etc. and turns them into calendar invites. No more looking for booking numbers or confirmation codes, because TripIt will take the information from my inbox…

I am not musically inclined. Or, rather, I'm not much anymore. When I was a teen, I played trumpet in a touring jazz band, but my ability to hit a high C has long since past. Which, I suspect, is why I'm in love with the free TonePad and Songify iPhone apps. With TonePad, there's no instrument to learn, or even music to read. You simply open the app up and run your finger across a field of dots--and voila, music! Now, it takes a little tinkering before you're making anything but pleasant-sounding noise (the simplicity of the program makes it difficult to create pure cacophony). But once you…

I'm a sucker for deal sites, apps and email lists. Do I really need half off of $16 in comic books, a Valentine's Day gift of a photography class, discount movie tickets and an absolute steal on a service that will convert my Hi8 videos into DVDs? The answer is yes. (Or, mostly yes. I have still have to find my Hi8 video cassettes.) Right now, there's a huge market for daily deal apps, so this week I'm offering  quick-hit reviews of apps currently on my iPhone. And, I'm asking our readers: Which apps do you use and why?Groupon ...is the 800-lb gorilla in the room, and with good reason. The …

Have you ever been in a store or a bar and wondered what exactly is that song coming over the speaker system? In the past, I've solved that problem with Shazam, a mobile app that captures a bit of audio, then spools up the song's title — and the opportunity to buy a copy on iTunes. That's all been well and good, but I've been frustrated with Shazam lately. (Sometimes it take too long to load, or isn't as accuarate as I need it to be.) So I broke my fidelity and started seeing other music indentification apps. My favorite, by far, has been MusicID (99 cents). Not only does it return results …