In the past, I have done minimal "enhancements" in order to let some of my sites display well on a mobile device. I am now tasked with designing pages specifically for mobile devices. The pages have addresses, phone numbers, URL, etc.

What I'm curious about is if there are any "tricks of the trade" I should be aware of? For instance, I managed to find <a href="tel:999999999" to format a telephone number and make it clickable. Any others? Any other advice?

Thank you!