New publisher Lexicon, which recently signed up Bad Day LA for European release, has announced a time-bending DS side-scroller called Chronos Twins.
As you can see from the screenshots, Chrono Twins uses a weird split-screen engine that allows you to control past and present versions of your 2D character in the same location.
Other details are a bit hard to come by - although everyone's keen to note that it has nothing to do with Square's Chrono Trigger series - but with the game due out in Q1 2007 (priced Ł24.99, Lexicon notes), expect more announcements in the near future.
Meanwhile, Lexicon says it's in final discussions to sign up four other DS titles. More on that when they announce.