Hi,
Got this problem since 2 weeks now. I've tried almost every solution that has been suggested on the web.
This includes :
- iPhone reboot
- app process kill
- Time change
- WiFi off + DNS change
- language change
- sign out and resigning in App Store
- full backup of my iPhone
- full clean up (unused apps, movies, old mails...)
And somehow this morning my problem got solved !
The Update page was no longer blank and I managed to get
my 12 apps updated !
Don't really know which of the tasks above did the fixing,
it looks like a fluke shot indeed.
Well, hope you guys get to fixing this problem soon,
Apple's silence is great help to us !
IP4S / iOS6.0 / in Paris, France