I have seen the future and the future is....

Delta .... mobile check-in. Last week Delta started their new mobile check-in service, i.e. the ability to use your phone or PDA to check in. Of course anyone with mobile browser could check in on their PDA/smartphone, but you still need a boarding pass to get through security. Delta has made it easy by sending a bar-coded document to your device, which can then be scanned at a self-service check-in terminal for a boarding pass "re-print". According to the Delta email, they are working with TSA to allow the bar-code to be used instead of a paper boarding pass.

This mobile check-in is available in Europe, but I believe that delta is the first US carrier to implement here in the US. Another way to remove another hassle from our travel, thanks Delta!