Things the PSP could improve on

Since I wrote an article on what I believe the NDS could improve upon in future generations, I think it's only fair to do the same for the PSP.  There have been a few iterations of the system, so I'll start with talking a bit about them.  The PSP 1000 was the first, and the 2000 and 3000 came after it.  The 2000 model introduced a new shell for the system that was substantially thinner than the 1000 model, causing it to be dubbed the PSP Slim.  The 3000 shares the shell of the 2000, but gains a new screen said by Sony to be better outside than the original, and a built-in microphone.  The screen itself has double the color gamut, double the response time, and nearly five times the contrast ratio.  Put simply, it's a noticeable improvement.  An entirely new version of the PSP has also recently been released called the PSP Go.  This version features a sliding design that keeps the controls hidden until needed, and a slightly smaller screen with the same resolution.  The other main difference between the Go and Slim is memory.  The Go has a built in 16GB of flash memory and an M2 slot for expansion while the Slim features only an MS Pro Duo slot.  The Go also ditches the UMD drive in favor of download only games. Now as I only have a PSP 3000 running 6.20 firmware, I can only speculate on what could be improved based on my experience here.  From what I have discovered, I think one of the biggest updates is obviously going to be the screen resolution, which can easily be doubled, and the graphics chip, which can easily be bumped up to 1GHz in these current times.  I'm honestly a fan of the slider design, back in high school I designed my own handheld, but I think the controls need a refresh.  I think that keeping one screen with fantastic graphics is fine but make it a touchscreen for easier control inside the games and apps and whatnot, a capacitive touchscreen.  I'm also a fan of having a large amount of built-in memory to store games on, but I think that a handheld should have some sort of cartridges or discs in order to play games across systems.  It would be horrible to lose all the games you'd downloaded if your PSP say, fell in the pool...  Shoot with flash memory being so cheap now, put the games on memory cards.  And to make all the fanboys happy, add a second analog stick to make shooters much much easier :-)  Now on to the software.  Sony has done a good job here, there are a lot of features you won't find in most handhelds, including a web browser, Skype, PSN store, media player, internet radio, remote play with PS3, and a digital comic reader.  The XMB bar is also a great UI.  The only thing I wish, and I know it'll never happen because it's Sony, but the PSP could really benefit from being open source.  It could easily run a version of Linux, or even Android as I believe Sony now has a relationship with Google.  Having a faster processor would also allow for a more functional web browser with support for Flash, making Android look even more probable.  Several companies have shown how easily Android can be skinned to work for whatever applications they need, so lets get to it Sony!