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I was looking at http://wua.la and noticed that alot of files are being uploaded and since Wuala claims to backup all files on their own servers then they must be using insane bandwidth.

A quick stopwatch test will show that about 80 (or more!) files are uploaded every minute. I don't know what the average file size is but I would suspect the average to be atleast 2 MB per file which means that the Wuala servers must be downloading non-stop at 2.67 MB per second and uploading atleast 163 KB per second (due to communications overhead) non-stop!

I was also starting to suspect that the number displayed on the website is just a fake number where a random value is added every second or it is incremented by 1 every random number of milliseconds because I was thinking that surely they don't want their webserver to be hit every second (in order to update the count) by possibly millions of viewers. So I devised a strategy to test if my assumption is correct:

Open the Wuala website (http://wua.la) and leave the page (or tab) open for an hour or 2 then write down the number and refresh the page (or open another tab) and you will see that in a fraction of a second the file count has magically increased by several thousand files. The reason for this is because the random number generator that's used on the website is purely that (just a random number generator) instead of actually displaying the true count.

With this information, it should be easy to extrapolate when exactly Wuala will reach 25,000,000 files because this is not a true count.