If you need processing power, go with an ultrabook as several posters mention here. Prices are great, battery life is **pretty good**.
Remember, with ultrabooks, like any notebook, they require active cooling to go along with the power.
If you are looking for a alternative to an Android tablet, the Vivotab Smart is a great choice IMO.
I currently have a Galaxy Note that is running a custom ROM. It does pretty much anything I need an android device to do, even things in tablet mode through the benefit of the ROM I am using.
I was seriously considering the Note 10.1. Galaxy Tab 2 10.1 CPU is just outdated now compared to a quard core Tegra 3.
My main reasons for wanting (not needing ) a tablet: Do my web surfing, watch TV shows/Movies, listen to music, dabble a little in Word/Excel (nothing major), social networking and remote manage PC's on my network (Team Viewer/Real VNC).
I can do ALL of this on my Galaxy Note phone NO PROBLEM. However, I wanted a device with a bigger screen to do this, and use my phone as the tether device when necessary, and also save battery life to make that emergency call when I'm stuck in the middle of nowhere...instead of having a dead battery due to watching that extra episode of Battlestar Galactica.
I was thinking about an android tablet, but it was just too much of a direct extension of my phone. So I decided to look at Windows 8 tablets. My first choice was the Microsoft Surface RT. VERY VERY glad I did not go with this device. Fit and finish is spectacular. Hardware is debatable - personal opinions right? However, the functionality of Windows 8 RT is not much more than an Android OS, and the Google platform has MUCH more to offer than the RT platform right now. I have no patience in waiting for apps to be developed.
Surface Pro is a great option, since it is FULL Windows 8...however battery life is crap. 4-6hrs? Might as well go with an ultrabook.
With the usage that I was intending my tablet for, I needed something to last through the day. So I did not need to have a device that is eating away @ the battery life when it is doing nothing, just to power a high horsepower CPU.
That's where the ME400 comes in. Battery life? Spectacular! I listen to at least 2 hrs of music, do about 1hr of web surfing (cumulatively), watch about 1-2hrs of video, and still have AT LEAST 40% battery remaining after being on for 18hrs.
I've installed full Microsoft Office 2010, Real VNC, Team Viewer, Power ISO, some android OS related software to modify various Samsung Galaxy phones, a few gigs of music, 5-6Gbs of video and still have 11GB remaining. (waiting for my 64GB Micro SDXC!)
I can view full flash sites which most android tablets cannot, unless you stick with GB or ICS. (although flash is being phased out to HTML5).
And again, file management, network management is seamless as it is the familiar Microsoft OS interface.
The ME400 to me is a great compromise between processing power, battery life, and most of all price. @ $499 CDN, hard to get that much functionality for that price. I can do everything on my ME400 on my Android devices, and I can do almost everything on my Android devices, on my ME400. My only wish is to get Bluestacks working on the Clover Trail CPU so I can play some of my Android games on my ME400...but I don't think it will have the CPU/Graphics processing power to do it.
There's my 2 cents.