I love these new, still rare, services that really make my business life easier. Most of them serve me in my nomadic needs as a professional, and all of them are mobile.
Traveas' TravelTracker automatically provides me with immediate and relevant information concerning flights, directly in my mobile phone.
All changes are sent via SMS as soon as they occur. For example delays or terminal and gate changes. The service works globally, no matter where I'm going or which airline I'm flying with.