WOMI of [erka:es] wrote an update today in the [erka:es] diary. I'll get my resident translator on it shortly, but from what I can tell, either the delay was an April Fool's joke, or it wasn't and they're finally getting stuff done so they can get started on Freudenstachel again (and hopefully will release the downloadable demo soon). I'll amend this post with further updates when I get them.
Edit: Yeah, they're finally getting back to work with Freudenstachel. Also, WOMI loves blogging about music.
Someone on 2ch found this interesting bug in Iris Palace 1. I'm not entirely sure on the triggers, but it would appear that if certain circumstances are met, the water, as seen, remains electricuted, even after the player dies. For convenience, I've uploaded the replay here. If you find any bugs in RKS yourself, then get a screencap or a replay, and send it to us, and we'll showcase it here.