I've heard that Monster Manual 3 came with an improved design philosophy for monsters (particularly solos), and there are questions about updating pre-MM3 monsters for MM3.
I want to create and customise some monsters for my 4e game, and if MM3 does have an improved philosophy, I'd like these monsters to be MM3-style. The DMG and DMG2 provide guidelines for creating and customising monsters (the DMG2 updating them), but these were both released well before MM3.
I'm aware I could create and customise via pre-MM3 guidelines and then adjust them to MM3 standards, but I'm interested in finding out if there's updated guidelines for creating a MM3-style monster from scratch without this intermediate step. I know at the very least that the guidelines for creating a solo must be very different.
Are there new customisation & creation guidelines for creating MM3-style monsters? If so, what (or where) are they?