If you try to use up the memory via the browser it comes up with a 'low on memory' message w/ firmware 1.60: you can use the browser to view folding stats ect while folding.. but you don't have full control of the browser during folding (ex, no inputing of urls, ect).. you can just follow links. but if you play around enough on the folding stat and faq pages, you'll find a link to google.. where you can do searches, then click links to web pages you want. if you load a page that has too much crap on it (ex, images, ect..) it will give you a 'low on memory message, and it won't load the webpage. i guess the folding client is only allocated a certain amount of memory, or something like that, and the browser in that setting is limited to the memory allocated for the folding client.
of course i am only guessing about the memory allocation, ect.. as i don't know what really is the reason for the 'low memory' message.