I (heart) commuting on my track bike. There are many better bike choices for commuting that add comfort and utility, and those kind of bikes are certainly the best choice for some. However, a track bike can very well be used as a commuter. You just have to be open to adapting yourself and your gear to commuting. Be willing to carry everything you need on your back. Find some way to transport water in the summer, wheather it be bolting on a bottle cage or stuffing a bottle in your bag or jersey pocket. Also, a change of clothes is good if you sweat a lot under your mess bag or pack.

As far as comfort, tyres will be limited so stuff in the biggest that you can. I have been fine with 23s though. A gatorskin in front and everwear in the back has lasted me a long long time and I ride brakeless.

Clip-on fenders are a must in the rain, and they come off easy to maintain the cleanness and simplicity of a track bike.

Have fun. Commuting on a track bike is pretty irrational, but thats what makes it bad-a and exciting!