I covered the basics (very basic) of the APEX integration we have a while back
Im really please to see the likes of Dmitri picking it up and blogging it, not only about the basics but also exploring the possibilities that are out there to extend the integration further without the need for work from BIP or APEX - less work always sounds good to me.
Check out Dmitri's latest entry on linking to reports via URLs.
Venkat goes a step further starting to investigate the possibilities of integrating with BIP using our web services.
Now if I can persuade one of them to go the whole hog and blog the 'how' of APEX/BIP web services I'll have even less to do ...