I found this information in a post at Akratic Wizardry.
In September WoTC will be coming out with a boxed set aimed at 4e newbies. It will be part of the "Essential" series. It may be the equivalent to the old Basic sets that came out years ago. I haven't had any desire to check out 4e. Until now. A $20 entry price is really attractive. If I don't like it I haven't spent a huge amount finding out.