Hate this patent wars! It already happened.
In latest Samsung firmwares numbers within SMS message are not clickable :-(
"At the heart of the disputes are the kind of small but convenient features that would cause many people to complain if they were not in their smartphones. For example, the case decided Monday involves the technology that lets you tap your finger once on the touch screen to call a phone number that is written inside an e-mail or text message. It also involves the technology that allows you to schedule a calendar appointment, again with a single tap of the finger, for a date mentioned in an e-mail."