Here are the changes so far for iOS patch 1.1 (all of these things are in the initial Android build that's going out in a couple days ).
Will continue adding to this list as we do more stuff:
*Raised Max Item level to 15, and Max Hero Level to 70
*Eliminated low cap on Speed stat and changed how the results of this stat are calculated
*INSANE Difficulty is much, much harder (and so is HARD)... good luck
*Rebalanced item drops to make super items harder to get
*Fixed some levelling & item farming exploits
*Adding GameSpy for multi-platform iOS-Android gameplay! And PC gameplay with Dungeon Defenders when that product launches. GameSpy supports Private Matches, Game Naming, Game Browsing, and an array of search filters.
*GameCenter support for private matches, and fixes for Inviting
*Better voice chat stability
*Many GameCenter & iOS crashes eliminated
*iOS 4.1 support
*Various new item drop types
*Big performance boost due to media optimization, and some code optimization
*Various gameplay tweaks for a better balance
*New Tutorial video explains the game in a minute, by default replacing the former interactive tutorial (though that's left in as an option)
*Performance scaling option for iOS, user can now reduce resolution and detail to further increase performance even more as they see fit
*Replaced on-screen Pause button with Character button which allows fast-healing, moved Pause button into character submenu
*Rebalanced item value ramp so that super-items don't sell for ridiculous amounts
*A brand new Campaign level & Challenge mission created specifically for high-level hero teams... because we appreciate the support of you hardcore defenders
* Lots of minor bug fixes and game tweaks too numerous to list here... (among the many, Targeting Dummies now print DPS as you're attacking them haha )
* Familiars re-added to iOS version
** Items now have a level requirement based on their quality, and also tell you which class is necessary to use them in the popup overlay
Will update this list as more is added. Looking forward to submitting this patch around the end of the year and having it in your hands as 2011 newly rolls in.
Now get back to playin'... you're gonna need mad stats to conquer the new INSANE mode missions!!
-Jeremy