Hello vaio tap 11 users or future user I just got one a few days ago and experienced some defects/error. Some are already posted here, some other are not please help to contribute to the defect list, we may can push sony to make a fix. (this is a premium product, we should get premium support). Wireless keyboard - keyboard typing performance took a nosedive when in close proximity with multiple cellphone - touch pad refuse to work precisely. Works fine if i ground myself to a ceramic floor. Really annoying when using *****/sandals. - When typing aaaaaaaaaaaaaaaaaa.... it suddenly stops - when holding one keyboard button (CTRL) while moving mouse using touchpad, the mouse cursor will have low fps (jumpy/stutter) and laggy - The keyboard sometime not working (no mouse cursur), always fixed after pressing windows button once (on keyboard). - no battery indicator for keyboard in windows desktop/metro. Software - IR Remote app wil say hardware failure after upgrating to windows 8.1 if it already have remote profile. Fixed by deleting all. - The antivirus trial are potentially dangerous for those that new in computer (it disables windows defender even after i refuse the trial). - the bravia engine are too harsh. It changes the picture profile/colour/contrast in jarring manner, it should be changing it gradually and smooth Etc - USB port not working, works after enabling "usb boot" on BIOS Defective by design (fix for vaio tap 11 mark 2?) - cant charge keyboard while using the tablet - annoying flaps - reversed mSD slot (it should be put upside down for easier removal) - mouse hardware click button too stiff - windos button on tablet too recessed and too stiff - charger port are hard to attach, super easy to remove. I think sony should use magnetic port. - the fan doesnt have obvious intake area - its super hot on back-top-left (near exhaust) - its loud when gaming or installing things - IR need more power. currently its too "directional line of sight".