I'd suspect some script is trying to do an API
query using a very long URL,
and the fact that this only happens when JS is enabled lends support to
I don't see any long url requested on enwiki.
Vector is using more
memory than the Monobook version did and this is causing an error for
people that used to have no trouble browsing Wikipedia before.
jQuery is by itself much more complex than the scripts used before,
plugins.combined.min.js and Vector.combined.min.js aren't small either.
Does Blackberry also fail on other webs using jQuery?