How many sites can Piwik handle?

Any opinions/data on just how many websites Piwik can handle? I am considering using it as a statistics solution for 1,000+ sites. Is that feasible? If so, what kind of rig would I need for such a thing (CPU, RAM, etc). Are there any MySQL limitations I should be aware of? Any help would be appreciated. Thanks.

I have only a small site and canĀ“t tell anything about high traffic. How many views do you have on this sites all togehther?

Here is a user with 300.000 views a day:
http://forum.piwik.org/index.php?showtopic=43

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see also: How long does the Piwik archiving process take for high traffic websites - or hundreds of websites? http://piwik.org/faq/general/#faq_38