VoodooPad 4.2.3 is going to be released shortly, but you can beat the crowds by grabbing it early from the latest builds page. The release notes are available, but in short- it's a bug fix release and I've taught it a couple of new tricks (VoodooPad internal bookmarklets with JavaScript/JSTalk, where you can make a link run some code instead of opening up a page).

After I ship Acorn 2.2 (also available on the latest builds page, and also close to release) I'll be working on the next 4.x update to VoodooPad. I'm going to be missing Objc Blocks terribly (VoodooPad is still 10.5, and blocks are new to 10.6), so I'm thinking of giving PLBlocks a try.