apples to apples
3PAR pulls of 224k IOPS with 1280 disks not 2000. It was IBM that posted a ~360k IOPS number with a pair of arrays with 2000 spindles.(and a $7M price tag)
And I'm sure since they are taking the next 18 months to develop this new thing by the time it comes out the other competing vendors will have similar systems as well. SSD took the entire enterprise industry by surprise and now everyone is scrambling to come up with suitable technology to best leverage it, nothing on the market in my opinion can do it effectively at this point outside systems from TMS (which I've never used, so only basing this on their on paper numbers).
The Axion 600 SPC-1 numbers posted last year were not impressive, especially on the cost front. Not only did it not perform very well but they had to short stroke the drives in order to get the performance that they did. For slightly less $$ you can get nearly 3x the usable storage capacity, and an extra 30,000 IOPS with a 3PAR F400 vs an Axiom 600. Now I don't know how Pillar licenses their software, 3PAR does charge extra for their stuff, but I think in the end it's still more cost effective and higher performing. And 3PAR has significantly more features, pretty much all of which are run in silicon, not software.
Fortunately these days new SPC-1 numbers include a % utilization number for usable storage to call out those who short stroke their disks.
The only thing I see Pillar having on 3PAR is Pillar can address more raw storage in a single system than 3PAR, something 3PAR better be fixing soon(my biggest gripe on their stuff). I find it kind of funny if you want to achieve high performance and high capacity(1PB+) with 3PAR you need 2 arrays, to address the capacity issue, if you want the same from the competition you need 2 arrays(or more), to address the performance issue.
Actually as far as features go it seems Pillar is light on those, not surprising though all of the smaller vendors(3PAR included) typically don't the 10,000 strong army of developers making new things so they have to focus more and do better at what they DO do.