Still in beta mode, but it should mostly work. Think of them as "private powerwalls", best for ongoing conversations. Use the "IM" button on the profile pages to send. Click for more info.

Conversations are saved forever, just like on the wall. If you send an IM to someone who just logged off, it'll be there waiting for them when they get back.

Known bugs:

• IM sessions use the refresh wall, not the streaming wall. There's a cross-platform problem with streaming more than one page at a time. I hope to fix this later.
• You may get new IM notifications in the "Who's On" section from the person you're currently talking to.
• The IM archives are mostly working, but you may not see full pages.

If you see any bugs not in this list, please let me know!