In safari 3/pc, if i try to run gadgets.json.parse() on a string larger than 40kb, i get a return value of 'false'. If i run eval() on the same string, it returns the json object like it should. In ie/firefox, i don't see this problem at all.

is this a safari issue?  google gadgets/opensocial issue?  myspace? 

thanks! 

 I'll look into this in the AM

  You're likely bumping up against the upper limit of the AppData store.  I'm speculating that Safari is adding some cruft characters that are pushing you over the limit (completely unvalidated).  A value of "false" means the scrubbed JSON failed to parse. Scrubbing involves a number of regular expressions being run to validate the JSON prior to parse.  You might try stepping the code to see what the post-scrubbed text looks like prior to parse.