Digital data collection for remote patients

One of Mashable's newest reports states that 73% of America's adults text and that 1/3 of them also prefer to be reached via text.  It's not surprising when recently Applied Clinical Trials detailed the recent Phase IV Pfizer study for Detrol LA.  They found that by using cell phones with a diary tool programmed in successfully reached their target audience.  Exco InTouch operated the remote clinical trial, and introduced the patients to the cell phones and their capabilities via DVD at the beginning of the trial.

In addition to reaching their remote target audience, mobile clinical trials have been known to positively influence recruitment, retention and compliance, they found that they had success reaching trial members nowhere near the Clinical Site.

How can the successful adaption of SmartPhones help more clinical trials successfully recruit patients?  Do you think there will be an issue if more clinical trials turn to this method and leave behind the rendez-vous point at the site?