My first thoughts for this game is, "Will this be a rehash of the SNES classic, have they rebuilt from the ground up, or do they give us the best of both worlds?" I plugged the cartridge into my DSi and fired it up...
The opening cinematic is certainly a big step forward for the classic, taking advantage of the dual screens. And what's this? More babies join the fray? This just might be a huge step up after all.
Level 1-1: not much to expect. But then again, it is the obligatory 'Get your bearings on the controls' introduction level. Not much has really changed other than the fact that you have to make Yoshi run by holding the Y button down. But overall, no real stress. Hardest part was getting the 30 star pieces needed for perfect score.
Level 1-2: Now here's where things get interesting. The first thing that I noticed were little red blocks with 'M's on them. Now what could these be? Since this is the intro level for this mechanic, it's more of a novelty at best. But I'm willing to give this game a chance to pull a hard puzzle out with these little bricks sooner or later.
Underground: Oh hoh? What's this? You can actually change which screen you're on? Now this is a nice new feature! As well as a frustratingly difficult little mini-game where you have to 'float' to the finish. I've made it far enough to get the gold #3 medal.
So far, so good. I'll report back when I scout out even more of Yoshi's Island.