iPhone 4.0 to be unveiled on Thursday?

If you aren't sick of the Apple hype machine after an iPad-filled weekend, you may just be by the end of this week.

Apple has sent out invites to a press conference offering a "sneak peek into the future of iPhone OS." It's not a huge surprise, as Apple has done this every spring since the iconic smartphone's launch.

Many expect the update to finally introduce full multi-tasking to the iPhone, as well as a new location-based advertising system called - what else - iAd.