How NOT To Enable Your Web Apps for Mobile Viewing

Neil McAllister at Infoworld put up a dynamite little checklist of pitfalls to avoid when designing web apps that have a mobile life, too.

So here's what you do if you want mobile users to mock you, and your website.

Use tooltips.  Mouse-over or roll-over controls require, duh, a mouse.  Use lots of them.
Use lots of interface widgets.  You can't grab 'em on a little smartphone, and tablet users don't need 'em.
Create multiple panes with their own scrollbars.  Drives users nuts as they try to scroll around your big page on their little phone, only to find multiple scrollbars you need a stylus to grab.
Dictate how text will appear.  Inflexible text won't line up right on a smartphone.
Dictate the page format.  Especially a butt-pain and invites a hide-and-seek game to find content, navigate and interact when pivoting orientation.
Preload lots of images and fat content, useful or not.  Slow, slow, slow on smarphone OS.
Use lots of Flash, especially for interface.  Won't work at all on iOS... and unpredictably elsewhere.