So I just got it today and let me just start off by saying it is the BEST phone I have ever had. Design:Very Very well made phone, feels extremely solid and has no creaks whatsoever, the battery cover snaps on and feels just great! Very appealing design and great too look at, the 4' screen is awesome to look at even at Half Way brightness, holding the phone is really nice fits perfect in the hand and never feels like its gonna slip off your hand (yea you N1!), the thing that surprised me the most was its size though, I thought it was gonna be BIG but its just right! In fact it feels a lot smaller than I anticipated (maybe its cause Im coming from an HD2?). Overall 10/10 for design. UI:This is the important part and imo it delivers very very well. Overall the speed is good, sometimes it can lag for a half a second on certain things (installing various apps at the same time) but for the most part it is very fast, comparable to N1. The only place it really kinda feels slightly slow and I mean slightly, is time and media scape, but nonetheless they are both very usable and Mediascape in particular is very awesome! (being a big music fan and manager). As far as having 1.6 rather than 2.1, its similar to having the hero, yes it has 1.5 but you dont notice at all since HTC Sense makes it look and feel totally different, its no different here SE has done a fantastic job here! It feels great and no one even yourself will notice that it has 1.6. With that being said when it does get 2.1 it will be amazing! 2.1 has been known to speed up phones and I cant imagine what it will do the X10. Overall 9/10 for UI. Features:I haven't got too far into many of the things on the phone yet but I did a few things, camera I took some pics and its great! Only slight annoyance is that you have to manually turn on the camera light, I downloaded apps from the market and all work awesome and look amazing on the 4' screen, set up my google account, listened to some music, watched some videos, everything has been perfect so far. So far I will say this It IS the best phone I have ever had, and I have had the N1, Hero, HD2, Satio and more. Feel free to ask any questions and I will answer, I know I didnt cover everything but I will answer any questions if you want, btw I am using ATT in the US and I used Edge to web browse and watch some youtube videos, surprisingly fast and great to use.