Airline tests boarding via mobile phone Filed under: Mobile Phones | by: Rien | Hits: 243 Techradar.com: Delta Airlines is testing a new system allowing customers to check in up to 24 hours in advance via a mobile browser service. Once the passenger has visited mobile.delta.com, an electronic pass will be downloaded to the phone with an electronic bar code, which can be scanned through the boarding process. Handheld scanners will be used to verify the bar codes, and will help significantl