Snow Leopard and CurioTweet
There are a couple of minor issues with Curio 5.4.4 and Snow Leopard. Specifically, text figures don't appear in HTML and image exports, and there are some quirks in the color picker so use Format > Show Colors as a workaround.
As soon as we pick up the release of Snow Leopard this morning we'll verify our fixes and get a 5.4.5 release out to the world.
Also, we've briefly postponed Curio 6's release to verify its compatibility with the release of Snow Leopard. You can expect it to appear the next few days!
Update: Curio 5.4.5 has been released so do a Curio > Check for Updates to grab it.