Some new speculation over at Think Secret has pegged a possible MacBook Pro update for next month. The update is rumored to about the new LED-backlit 15-inch displays and could come within days of Apple CEO Steve Jobs' keynote during the Worldwide Developers Conference on June 11.

According to Think Secret, their sources tell them that Apple's order for the displays called on a delivery schedule of mid May. Based on the standard schedule that the company has used in the past, there will be a three to four week window for manufacturing and shipping.

The final date would coincide with Jobs' keynote address on June 11 in San Francisco. Says Think Secret, that's where Apple is likely to announce a new MacBook Pro using a LED backlight display. Think Secret also says that according to the same sources, Apple will be targetting a Q3 rollout of their low-end 13.3-inch laptops.