Other then leaving my phone connected to iTunes and clicking the "Check for Updates" button how can else can I check if it is available ?

Other then leaving my phone connected to iTunes and clicking the "Check for Updates" button how can else can I check if it is available ?
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Thank for posting the same question twice!! SHEESH!!!
while true; do clear; curl -s -L http://phobos.apple.com/version | grep -i restore | grep '_3.' | sed 's/
i just read apple switzerland say its out in 2,5 hours