I was trying to find out which version of GlassFish shipped with NB 6.0 Beta.
According to this page
http://sunmicro.vo.llnwd.net/c1/netbeans/6.0/beta2/
even the beta version comes with GF v2-b58g, so pretty sure NB6.0 final release ships with b58g. If yours show b53, maybe there is older installation somewhere and may need cleanup.
The connection to www.sun.com is for providing the latest information to present to user such as documentation, training etc at the bottom of the common task.
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