Sony’s “don’t call it a netbook” VAIO P may be getting an internal makeover by the summer according to the all-things-Sony blog, Sony Insider. The current VAIO series model numbers have naming conventions such as “VGN-P530H/G” and Sony Insider was able to dig up six mysterious model numbers that look similar to the current ones, but place them in the 700 series instead of the 500 series.

Four fairly straightforward models – VGN-P710T/B, VGN-P710T/R, VGN-P710T/G, and VGN-P710T/W – would seem to indicate one configuration in various color options (black, red, green, white) while two additional models — VGN-P730A/Q and VGN-P730T/Q – leave a bit more to the imagination.

The whole “coming in summer” idea is pure speculation by Sony Insider at this point, and they seem to think that the new models “won’t be a total redesign, but a specification update” to include stuff like a faster processor, more RAM, and larger hard drive and SSD options.

New VAIO P Coming? [Sony Insider]