On a average day I expect about 300kB/s over WiFi on the n810. Using performance tools that do not have to interact with memory or saving the files I can get upwards of 700kB/s but that does not seem to be the reality of the device.

To give you an idea that means 100MB of data will take more than 5 minutes to download vs my laptop which can download that in ~20 seconds. ( over the LAN , not internet )