For the #PocketPortal workshop, I wanted to include a clickable SMS link in one of the page examples. Clicking it would open the texting app with text and phone number set, inspired by moonshine.mu's "SMS for location".
You may have encountered similar links which use mailto: (for email) and tel: (for telephone) in the site's #html markup.
Anyway, doing so is trickier for SMS, but StackOverflow came in clutch: https://stackoverflow.com/questions/6480462/how-to-pre-populate-the-sms-body-text-via-an-html-link/58131833#58131833
