I've tried fennec, it is SO SLOW, it is impossible to use. Every click causes delay in several seconds, when the tablet is unusable, with unpredictable result afterwards. I've spent a quarter of hour trying to type a URL. After finally opening GMail page, it asked me several times to stop hanging script; the entire thing was much slower, order of magnitude, than regular tablet's browser, and finally app was terminated with low memory message. Few experiments with different sites are finished the same way: fennec dies quickly, because of low memory. It looks like pure animal requires space for his movements, tablet does not have. I have a standard recently reinstalled N800.