Since my wife and I are expecting our first child in April, I was worried about choosing a baby name. So, I created a Google Maps mashup with popular baby names statistics from around the world to help in my search.
I went looking for a pop-up dialog and came across ExtJS. After using the basic dialog, I quickly hooked up the data grid for showing name stats. The tabs and AJAX update manager provided a great way of showing info on a particular name. The Aero theme also fit in great with my site.
It was a breeze hooking all this up. I used Ruby on Rails on the back-end with Prototype underneath ExtJS. The whole thing took about a month part-time (evenings and weekends). I'm a Java Swing developer by day so my web skills are pretty rusty and yet ExtJS was easy even for me to use!
Thanks a bunch to the ExtJS team for putting together a great library and toolkit with excellent documentation. I'm looking forward to using more of ExtJS in the near future. Keep up the great work!