My iPhone.

I got an iPhone about six months ago and here's how it's changed my life: I had been carrying three devices, a personal Blackberry, a work Blackberry (because I couldn't get my work mail on my personal phone) and an iPod. Now, I carry just one device and, therefore, my life has improved.

Some design stuff sucks about the iPhone. When I cradle it against my shoulder and ear, I often activate the mute button. I lose a lot of calls that way.

The thing that really annoys me about the iPhone involves apps. When I'm in a taxi on the way home, I often play Solitaire. My younger daughter just this past weekend introduced me to a game called "Fruit Ninja." When I turn on these games I get a little pop-down window that cloyingly tells me "Welcome back, George."

You know, I'm kind of embarrassed to be playing the lame-brained games. Surely there's something better I could be doing with my time. So I resent the assertiveness of the apps welcoming me back.

I think of these welcome greetings much the same way I think of a lot of online utility. It's there and we can do it, but it doesn't really serve any important, legitimate purpose.

Just because you can doesn't mean you should.