any way of doing autorecovery in Keynote?

Welcome to the discussions, barefeet.

Unfortunately, there's not an autorecovery proces that I know of. There's an Autosave information folder that may be in your Library folder if you're running Leopard, but I've never seen it do anything.

As with all computer work, it is critical to save and save often. I recommend that you hit the Save command after the creation of every slide. Then, if you do have a crash, you will lose only the last slide you created.

Another suggestion is to Save As a different version (e.g. rev 1-2, 1-3, 1-4, etc.) as you go along to create or make modifications to an existing slideshow. This way, you can retrieve easily an earlier version if you find that need it. When you are satisfied with the later version(s), you can discard the earlier ones.

Keynote is a shame. Enormous possibilities but bugs reported on the forum for months and absolutey nothing to help from Apple.Selling iPhone is probably the priority.
Presenting on a podium with a mac is becoming a nightmare. Powerpoint 2008 is as bad as 2004, takes minutes to open a large file so if it crashes during a lecture, you might as well go to the gents while is rebooting...
Keynote crashes or will not save modified lectures. Although some users have reported the issue with ms word spelling messages months ago, no patch has been issued. No answer is given to users so I can only see 2 options: Present with a PC or go back to V06 which was stable, at least with tiger.
Making an automatic recovery every 5mn should no be a big problem for Apple but Keynote users don't seem to be a priority for Apple. For a long time, we laughed at PC users presenting with powerpoint crashing or unable to hook up. Now I've experienced crashes in front of hundreds of people and that will not encourage them to buy a Mac.