updated 12:13 pm EDT, Tue October 1, 2013
Update could arrive as soon as next week
Fresh off the release of iOS 7.0.2, Apple is already seeding a final test of iOS 7.0.3 internally and to various partners, sources claim. It's uncertain what the update is intended to fix or add. It's believed, however, that the firmware could go live as soon as next week.
One possibility is that like v7.0.2, the 7.0.3 update will address recently-discovered lockscreen bypasses. It may mark the third patch for iOS 7 in less than a month. On the day the iPhone 5s and 5c were released, September 20th, owners were immediately prompted to download a special v7.0.1 update fixing issues with the 5s' Touch ID sensor.