Well I got my Ultimate Magic PDF loaded up on my iPad and read through it a few times. (The dead tree copy is on it's way..)
-Magic Items.. Honestly surprised there was NONE listed though the section on Constructs and Spellbooks was very interesting.
-The Magus. Still kind of split on this. Casting arcane spells in heavy armor (granted only to 6th level and heavy armor is an option @ 13th level)
-New stuff. The stuff for Alchemists is way wicked. Like.. extra limbs, alchemical zombies, cloning and other fun. I can see an Alchemist with simulcrum and clones as the ultimate bad guy in a campaign. You kill him.. only to find out it's a stand in. The new options for Clerics (domain related channelling) is meh.. the new archetypes for cleric are okay. The new sorcerer bloodlines are cool and the the twists on some of the current blood lines are cool too. Druids get a few new archetypes as does Inquistors (including one of Heretic that lets an ex-Inquistor still use his abilities mostly). Paladins get Oaths, Monks get Vows, Rangers get traps, Bards get Masterpieces and Wizards get Arcane Discoveries (all of which can supplement some stuff, take the place of certain class abilites and/or spells/feats). Not too sure about the Vows/Oaths, still dubious about the traps and the Wizard/Bard stuff looks interesting for certain campaigns.
Summoners get a list of basic templates to design their Eidolons on and a new archetype that lets them MELD with their Eidonlon. IE.. They become their pokemon..er.. summon.
Some of the other stuff is sorta half and half.
Interesting write up on designing spells for the players and GM
Spell Duels could be interesting (again depends on the campaign)
Binding Outsiders offers some hooks
Modifying Constructs makes for some interesting points.
New Familiars.. got some nice ones
New Feats. Good mix of things. Not anything really thrilling metamagic wise. Got a bunch of 'Extra' feats. Lots of feats that modify class features.
New Magic system: Words of Power.. a word based magic system. Still trying to get my head around it.
All in all, a lot of stuff to play with. Definitely going to use some of it.
Things I'm DEFINITELY NOT using? Double Curses (Oracles) and Double Bloodlines (Sorcerers). Nope..