>Lately I've been looking at Linux, just for fun now, but possibly with serious intent later. I notice that Borland's Delphi is cross platform capable. The prices are a little off putting for someone who just wants to play around ($999 for a new 'Professional' level user). What I notice even more though is the dearth of community outside of the borland site. I also notice that the metro search for Delphi returns even less than Foxpro. Yet, Borland has just announced a .Net compatible Delphi. I'm really drawn to the development suite idea, and Linux seems to be growing in popularity.
>Just wondering if anyone out there has any ideas on this.

If you 'just want to learn' then a good approach would be to try Kylix PE (Public Edition). It doesn't have all the bells and whistles that the DE (Desktop Edition) has. It is missing a few connections to Oracle, SQL, etc..., but some GPL substitutes are available. ZEOS releases some good ones. The hottest Borland sites are the four newgroups that Borland supports (they claim they aren't controlling them). You can click on a link at the Borland Kylix website and that link will automatically connect KNode or your other newsgroup reader to the four newsgroups. I would guess that 90% of the users are from a Windows background. eLists and newsgroups are the two most common methods of community sharing in Linux. I can't think of a single Linux site that would be similar to UT. Some news sites require a verified email address and identity before one can log in and make comments, but they are very few.

IMO, the best GUI RAD dev Tool combo in Linux today is KDevelop 3.0 + PostgreSQL 7.3 or higher + QT 3.02 or higer widgets. Mandrake 9.0, or the coming release of United Linux (SuSE) or Red Hat's next release is an easy way to get them all together on a single distro boxed set. Otherwise, you can go to their respective sites and download the latetest RPM files for them and upgrade you existing Linux installation. KDevelop uses C++, but connections to Pascal and a VB-like scripting engine are in the works. With this combo I am able to design a BUI data entry screen and not write one line of code. PostgreSQL is rapidly approaching Oracle in power but is a lot easier to maintain. It is a true OOP RDBMS. Pgaccess, a 3rd party frontend using TCL+ is more powerful than many people realise. Think of it as an extra powerful admin tool.

If you want to go commerical (not GPL, not free), but affordable, then
http://www.thekompany.com/home/
is a good place for GUI RAD dev tools in Linux. It uses Python, an OOP engine whose syntax looks like VB/VFP, and Ruby, which is similar to VB.
BlackAdder
http://www.thekompany.com/products/blackadder/
And their KDE Studio Gold Pro version for $70
http://www.thekompany.com/products/ksg/

Financial
http://www.thekompany.com/products/kapital/

And there is much more at other vendors.
JLK