A very imaginative service has been developed called ArrivedOK and is in beta in many parts of the world, except the USA.
As a global nomad this kind of service is ideal for me, especially with my family and colleagues. I regularly text the word "landed" when I touch down using either SMS or the built in Blackberry Messenger to those on my Messenger Buddy List internally.
The service, which comes from a Texas company is awaiting USA carrier approval for a short code certificate, but when they get that, I imagine the service will be very useful to the frequent flier types who have to be working anywhere at any time. From my perspective, ArrivedOk will cut down on a task that for some can be time consuming or just challenging. They smartly have also included email as a notification mechanism.