You can play 1945 v1.0 as a sidescroller or as a vertical shooter, but for the latter you'll have to contend with some tricky hand positioning as the shoot and bomb actions are bound to the X and O buttons respectively. Movement is done by using either the d-pad or the analog stick.
It's been a while since we heard of anything from PSPoste, but it looks like the wait was well worth it. Now on Beta 7, this email client for the PSP has several new features and bug fixes.
Homebrew developer Lokiare has released a new version of the CPU-Modulator PRX, a plugin that automatically changes your PSP's clock speed for optimum performance.