Its all gerneral bug fixes and more stability really. Im on 3.52m33-3 and its really good - anything i throw at it it will play.oh... and the xmb loads faster (when first turning on the PSP), it loads a few seconds faster which does make alot of difference. The themes as well, most themes for the psp are made for 3.40oe or 3.52 m33.
besides that, its just the compatibility with newer psp games.
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