blazeDS...FDS is free .................

Can you believe this???
read more
http://labs.adobe.com/technologies/blazeds/
http://blog.simb.net/2007/12/12/
blazeds-adobe-open-sources-flash-remoting-and-messaging-servers/
http://download.macromedia.com/pub/labs/amf/amf3_spec_121207.pdf
http://www.adobe.com/aboutadobe/pressroom/pressreleases/200712/121307BlazeDS.html

Auto complete texArea

this seems to be nice code ....u get the hint of the text.
http://www.asserttrue.com/articles/2006/04/09/actionscript-projects-in-flex-builder-2-0