nice hi-jack!
easy peasy lol.... just open the .app folder, eg facebook.app, inside you have url.txt - open it and change
if using it for a website, just enter the address eg:
http://iphone.facebook.com
if wanting it to dial, enter:
tel://07731 123456
replacing the number with the one you wish to dial.
icon.png is obv the icon shown in the spring board, default.png is the graphic you see for all of 3 seconds before it actions the url or phone number
hope that helps.........
now back to the question lol, is that how people are doing it? creating multiple dialer apps?
J