It seems fairly early on and has time to evolve. I don't think it will be as popular as LBP but who knows.
What I find to be the big drive in LBP community content is how some users do some of the most jaw dropping levels, surpassing MM's own levels, with what seems to be such a limited amount of tools. Seriously, I have played some sick RPGs on little big planet that record your freaking progress (via passwords of course) and it still blows my mind how the fuck that came to be. I don't have any creative juices in me but some of these people should be working AT MM.
Project Spark seems kind of soulless honestly, they don't seem to have that mascot that is Sack boy...unless you count conker now.








