like for example back in 2007 Sony stated this :
there just might be No ....PSP 2!
but yes... to playstation Phone!
Not only did SCE UK managing director Ray Maguire confirm that the handheld is going to be lighter, but he also said the current PSP is a mere "first iteration." Of course, it has also been confirmed that changes occurring to the PSP system will not affect in any way the screen's size, as it is the handheld's most valuable feature. Rumors of an improved PSP had been around for months already, yet the 14th of March 2007 was the first time it had been officially confirmed by a company spokesman. However, Maguire didn't say anything other than a size and weight reduction to the system (such as a release date for it, or which development stages they'd completed).
So I guess we've missed our window of opportunity again, to find out more on what's cooking in Sony's labs. For all we know, they could have stalled the PSP 2 project. Sure, the PSP Phone is Sony Ericsson's, but it doesn't leave much room for the PSP 2 that's for sure.
http://news.softpedia.com/news/PSP-Phone-Yes-PSP2-NO-Are-They-Dropping-It-56507.shtml
with the way thing's are going a smartphone PSP would be a very viable choice.

I AM BOLO
100% lover "nothing else matter's" after that...
ps:
Proud psOne/2/3/p owner. I survived Aplcalyps3 and all I got was this lousy Signature.