Installed the update (it's Android 2.3.3, not 2.3.4, unfortunately) in the wee hours of this morning on a totally stock X2 (but with a 30+ day app load & usage on my DX2). I have been using it on and off before I went to bed and since I got up (sometimes it's worth having insomnia!). Here are my observations: Pros -No installation issues whatsoever. Total install time was about 15 minutes or so. First boot (at the red Droid eye) was pretty slow, as usual. -NO lag whatsoever, other than when launching the camera app. WOW! This is the fastest Blurred Moto device I've ever used! What a huge improvement. This makes it feel like an entirely new device in every aspect. Quadrant score is now 2691 (was 2084 on the first run). -Icons have been redesigned and look like the D3's and in the most recent Bionic leaked images. Battery icon on top has been redesigned too and the green makes the Pentiule screen look less noticeable. Almost every single Moto widget has been overhauled, all for the better. Also the bluish gradient in the background (like while on a phone call) seems smoother and more refined than it was before. Less dithered, perhaps? -Upon startup, free RAM is now 120Mb. I was at 80-something before and I haven't done anything in the way of optimization before or now. -"Sleep" mode has been added to the power-off menu (like my DX1 had with GB). I never really used that feature but it's still nice to have. -Annoying sound when inserted in dock has been fixed -The duplicate text message bug appears to be totally fixed. YAY! -Onscreen keyboard doesn't lag when haptic feedback is enabled and it's got the "hold top row buttons to get numbers" that I had on my DX GB. Huge improvement there! -Too early to really tell but battery life seems to be somewhat improved as I've been using it pretty heavily so far (wi-fi on constantly) and I am still at 70% and I left it off the charger overnight. -The occasional screen glitches and graphic corruption I got when playing games (namely Angry Birds and Samurai II) are gone. Updated Tegra2 drivers I assume? -No broken apps or widgets. All I've had to so far is put my login credentials back in Amazon App Store. Netflix works fine! -The horribly annoying camera bug I posted about a few weeks ago has thankfully been fixed. My flash fires properly 90%+ of the time. Previously I would shoot 20 pictures and maybe 4 of them would be properly illuminated. Now I just took 20+ pictures and only 2 of them were overly dark. Both continuous focus and autofocus seem faster now and I just recorded a quick 720p video to a class 4 microSDHC card and it didn't have the stutters or hiccups it sometimes did in the past. -The annoying delay when hitting the power button or the home button before the screen came on is fixed. Also, the lock screen unlocking lag is gone. -Stock Gallery app is still a lot slower than it was on my DX but it's definitely faster than it was on DX2 Froyo. There are also fewer empty thumbnails than before. I will keep using QuickPic, however. Cons: -NO UI changes whatsoever. No 3D effects or any of the fancy stuff from the Droid 3. It's identical to the Froyo/Ginerblur from the DX1 and stock DX2, just with larger and more refined-looking icons. -No changes to the camera app. I was REALLY looking forward to getting the new camera app from the D3, if only for the UI changes. Oh well, I'll live with the huge performance improvements. -Bootup isn't much (if any) faster than it was before. Still 120+ seconds from powering it on until it's usable.