Memory leak?

[GoogleCodeExporter]

What steps will reproduce the problem?
1. I have modified the iphoneg4.html demo: http://pastebin.com/nmJCQg4u
2. If you open the page in the browser (Firefox in my case) it will 
continueously allocate nearly 100 mb RAM per cycle and this memory is never 
deallocated.

Is there any way to deallocate memory used by viewer manually? I have a site 
with many models and after user clicks them for fun over 50 times his browser 
hangs up. :(

What version of the product are you using? On what operating system?
1.6.5

Original issue reported on code.google.com by [email protected] on 15 Jun 2015 at 2:23