Not current, I don’t think.  Asus’ 8″ is gone, Pipo did one run of W5, also gone, Vido did W8S and gone.  Someone might still have stock of each.  I have an Asus and a Pipo, the Asus is Wacom stylus, I believe the Pipo and the Vido both have Hanvon, neither battery or powered.  The Vido and the Asus both have storage for the stylus in the tablet, but the Pipo is smaller and more comfortable.  My Asus had a dead band about 25mm wide that didn’t respond to the stylus along the bottom edge of the tab when held landscape, currently it doesn’t respond to the stylus at all, which is apparently a common problem, but fixable.  My Pipo’s stylus (it’s unpowered EMR, no battery, like the Asus’ Wacom) has been reliable, it seems to have the same sensitivity right up to the screen edges, and its pressure sensitivity feels like the Wacom’s too, thick and thin lines in Sketchbook no probs.  I prefer it to my Asus.  Those are/were the Windows options, so far as I know.  Since their production, there are current and upcoming stylus Chinese 10″ tabs, Cube iWork10, Vido W10D, Chuwi EIA10 plus ebook, and Asus T100 Chi.  Cube’s the only one with 4Gb memory, 64-bit OS, unless Asus is 64-bit with 2Gb.   Asus has a fast Atom with 2Gb, Vido and ChuWi are  dual boot, ChuWi’s 1280 x 800, the others 1920 x 1200 resolution.  Asus reportedly uses N-trig stylus with battery, Cube reportedly uses Wacom, I’m assuming no battery, dunno about Vido, ChuWi, ChuWi’s stores in tab body silo, doesn’t appear to have battery.    I did notice that there’s a new powered fine-tipped capacitive stylus offered at deal extreme and tinydeal, http://www.dx.com/p/usb-rechargeable-capacitive-stylus-pen-w-ball-pen-for-ipad-air-more-black-382705#.Vp7q9jhf3IV  and http://www.tinydeal.com/mini-capacitive-touch-pen-stylus-f-iphone-smartphone-tablet-ipad-p-157582.html    won’t have pressure sensitivity but might be alright for handwriting or line art on any tablet.