Any sufficiently popular networked application will evolve to include a web browser.  

-- [WHD] ''although possibly this isn't an original observation''

Sounds very much like "Every program expands until it can send mail." -- you just applied it to a different area. :-)

[TV] Honestly, I feel much like seeing application of the law known to every electrical engineer and of course many others to the world of software, alledgedly coming from Murphy:

   * Anything that can go wrong ''will'' go wrong at some point in time ...