@lestatdark It just seems like something that can be done on PSN. You know the levels are short and the controls are a bit limited for the asking price(though, I don't know what the price may be, but I think it'll be around $30). It would a perfect $15 dollar game like Espace Plan.

Two things:

- Most of the mechanics wouldn't be as well applied on a PSN game, especially the paintbrush one. Talking back to Okami (which used a similar paintbrush mechanic), it only worked because it paused action during combat or else it would be almost impossible to do it in both versions, Okamiden for the DS as well. Same would happen with Sumioni as a PSN game (as it is, only the more complex demon arts are required to pause the game, the rest can be done fluidly, making for a pretty fast combat schematic). About the controls, i'll get over it on the second point

- That was the first stage only (it was already shown back in December), so about time per stage and controls you can't take any kind of evaluation given that fact (not only levels will increase in time and difficulty as you go along, you also probably don't have access to all the capacitices of the game right at the start) plus the game has a large variety of branched stages, multiple endings and overall goodies based on your performance, so it has a ton of replayability value ( http://www.siliconera.com/2012/01/10/acquires-ink-platformer-sumioni-has-branching-paths-and-multiple-endings/ ). 

I still don't see why anyone can consider it not worthy of being a full game. If that was the case, then there was a ton of games for the PSP and DS that should have gone to their respective stores (PSN and WiiWare) instead of being full releases.

@lestadark I'm saying it would be a perfect for someone who wants to play a quick level. I know there's some content to be found, but Escape Plan has about the same amount of content(don't counting DLC) and the touch controls on Escape Plan are more immerse than Sumioni's,which uses both touch and motion control for multiple puzzles, removing traps and objects, and movement. A game like Escape Plan is made for the Vita, despite what Sumioni may offer as a beat-em up side scoller, it's really nothing special compared to what Escape Plan has to offer. By the way, it's "DSiWare" not "WiiWare".

Well...technically nearly every Vita title will be on PSN, so it's not saying much by saying a game should be a PSN title.

How do you know it will have same amount of content ?

And well i'm a sucker for Sumioni art style while Escape plan doesn't interest me at all ;)

We still don't know enough about the content of Sumioni to make that assumption, but I hardly believe both games will have the same amount of content, especially since (once more), the structure of Sumioni is extremely similar to that of Muramasa (with all the branching paths and multi endings) and level length is bound to increase as you go along (can't possibly expect that every level is finished in 2 minutes or less now can you?), especially if it follows a level progression as the Patapon games of the PSP (first levels could be finished as well in 2 minutes or less, later level could well be over 20 minutes). 

It's all a matter of opinion whether or not Escape Plan or Sumioni are special or not. To me, Escape Plan is nothing special (nothing I haven't seen before in lots of tablet games), but Sumioni combines two mechanics from two of my favourite games, Okami and Muramasa, so to me, Sumioni can be very special. 

And yeah, I know that it is DSiWare (heck i'm at the Nintendo E-Shop right now on the 3ds ), didn't double check my writting there xD 

Hmm while that is good news for the Vita, I love the news because its really good news for NIS! I want more NIS games!

I don't know, with each passing day, and with each new news and details released about the Vita, the more I'm hating it.

Ragnarok seems to be doing GREAT:
http://psp2roundup.blogspot.com/2012/02/ps-vitas-ragnarok-selling-out-in-stores.html

Those are really great news...

http://www.youtube.com/watch?v=LHVzyONO5KU&feature=player_embedded#!

Here a Video and it include a Pass/invitation  for the PC game XD

So what kind of sales are we talking about for Disgaea 3? Because as far as I know only Hot Shots is a 100k seller.