OpenJazz
OJ
SourceForge
22/8/'09
OpenJazz is now on SourceForge.

This was done for a variety of reasons:
-Other developers can now contribute code more easily. This means that the code for ports can now be re-integrated with the main codebase. It also means that there is less of a barrier for other people to contribute improvements.
-I usually wait until I have several new features before I release the latest version of the source code. Now there's an SVN repository, I can upload bug fixes and new features as soon as they're done.
-Bug reports and feature requests can be tracked in a more consistent manner. I've added a few example bugs to the tracker myself, feel free to add your own.

So, how's OJ development going? Well, I've rearranged the code into more files and - get this - folders. There's now a framework for adding new game modes, and I've used this to add a race mode. Additionally, the compatibility problem with J2E-generated level files has been fixed.
Another update
21/6/'09
There's a new version available, with a bunch of minor changes.
Further update
26/5/'09
I've just uploaded a new version. Along with the usual bug fixes and minor improvements, this version introduces sound effects.

Plus, you can now comment on these news items!
Important fix
29/3/'09
It's now been confirmed that the last version does work over the internet!

Unfortunately, this highlighted a major flaw. The screen goes black when a player dies. This was intended for single-player mode only, but it also happens in multiplayer mode. This makes playing the game rather difficult. A fixed version can be downloaded now.

Also, I keep neglecting to mention the Mac OS X port.
Multiplayer (again)
22/3/'09
The last release was not a resounding success, so there's a new version now available. Hopefully it will work for people. I can say that it now works locally under Linux.

Multiplayer aside, there's the usual bunch of changes and fixes.
Multiplayer
15/3/'09
There's another new version to download. This time, there's a major new feature.

Multiplayer has always been one of the intended outcomes of the OpenJazz project, but various factors have put it on the back burner. Now, finally, it's here for you to try.

It's not perfect yet. It works locally, but I can't get it to work over the internet. The testers were all behind routers, though, so it may work for you. You can change your character's colours so that you can tell each other apart. Press F9 in-game to see a list of all the players.

There are three multiplayer modes:
-Cooperative: Work together to make your way through the levels.
-Battle: Score points by roasting the other players.
-Team Battle: Score points for your team by roasting your opponents.
Switch to C++
17/2/'09
I've switched OpenJazz to C++, to make the code more easily understandable. It's ready to download.

It also has some new features, including:
-Enemies that shoot
-The ability to swim
-Various physics improvements
Long-awaited new version
23/7/'08
A new version of OpenJazz is now available for download.

It's been a long time coming, and I can't remember all the changes I've made. They include the following:
-Settings are now saved on exit
-There's an in-game menu
-Bees (and a bunch of other enemies) now move.
Update and ports
12/2/'07
I've just uploaded the latest version.

As expected, I've taken out all non-standard code. The code only makes the distinction between Windows and Linux.

Main improvements in this version:
-Better handling of springs
-Simple bridges
-Ability to pause
-Configurable controls (not saved on exit)
Update and ports
18/12/'06
Behold the shiny new rejuvenated site!

Not much has happened to OpenJazz in the last few months, but I'll be working on it again in the near future.

This is old news, but OpenJazz is available for the PSP and PocketPCs.

A note to all those excellent people making ports: I've decided to remove your code from the main codebase to make it more readable. I have a feeling you guys know how to make it work on your respective platforms better than I do, anyway. Also, when linking back to this site, http://www.alister.eu/jazz/oj/ is more future-proof.