Yes, I have. It certainly helped in browsing experience (no frequent wlan drop-offs, no sudden reboots, faster browsing), but it probably doesn't make more memory available This isn't a huge problem, usually I encounter this "low-memory stall", when browsing my favourite photography website http://www.dpreview.com . First of all, there are many Flash animations already in the main page, and sample pictures might be 5-7MB jpegs, which easily stall 770, even when keeping my rules of engagement (= only two browser windows, one main, one for popup). But still, this is first portable device, which can handle Dpreview somehow comfortably.