The good is, It have lot new contols and its easy to integrate all complex database with new visual treat.. and it enables simple transition effects when the states r changed.. Its based on XML..
The bad is, When we creating this type of websites, the size of the file is getting bigger and obviously it requies hign bandwidth..
hmmm... and I tried to create a elibrary... and u can see it in madosoft.freevar.com/madosoft/library.html