I'm ready to upgrade my Windows PC and I'd love a touch screen and something I can also use as a tablet so I wouldn't need a separate Windows laptop and iPad anymore. For work I do Lotus Notes development which I think is far more RAM than CPU intensive as well as web development, I browse the web a LOT often having more than 20 separate Explorer tabs open, I use Office 365 fairly seriously, especially Outlook which is always open, and I'd love to be able to watch all my iTunes, Netflix, Hulu, Amazon Prime and UltraViolet videos on the device. I also edit music on Cakewalk SONAR X3 and would like to get into more video editing with Vegas Pro and maybe Premier Pro, mostly for fun but maybe for work in the future. I have well over 700 GB of iTunes media and right now iTunes media is stored on an external 1TB My Passport Ultra drive - it's EXTREMELY slow to make any changes to any of the song info, upload new songs from my disk, etc. When I have lots of apps and browser tabs open my 4GB Dell i5 laptop often goes on RAM holiday - the hard disk light pegs and I can't do anything at all with the laptop for sometimes over a minute - this is my biggest problem right now. Based on this, I'm thinking I need either the SB or SP 4 with the i7, 16 GB of RAM and a large drive, at least the 512 GB. Does this sound reasonable? And based on my usage as described above which would be better for my needs, the SB or the SP 4? And by the way, I do like to take my iPad around with me and use it just as a tablet for extended periods of time - I gather I won't be able to do that with the SB in clipboard mode, given the shorter battery life, right?