A few things:
First of all, I highly doubt that there will be a 13" RMBP for the reasons listed above. The 15" RMBP is packed, and the only way I see to shrink it is by shrinking the battery or pulling the graphics card.
And the graphics card CERTAINLY is important. While its not used most of the time, it is necessary when anything graphical is done (from video games to photo editing).
And even if Apple was able to come up with a 13", it would not be more than $400 MAXIMUM less than the 15" (probably $100 or $200). The fact that it's 2" smaller does not account for the fact that an incredible amount of engineering would be done to fit all but a portion of the battery (the least expensive part) in.
Also, for those of you talking about RMBAs, no way. RMBAs don't even have a "real" processor (they use ULV), so I highly doubt they'd be able to fit both a real battery and a processor to power an RMBA.
First of all, I highly doubt that there will be a 13" RMBP for the reasons listed above. The 15" RMBP is packed, and the only way I see to shrink it is by shrinking the battery or pulling the graphics card.
And the graphics card CERTAINLY is important. While its not used most of the time, it is necessary when anything graphical is done (from video games to photo editing).
And even if Apple was able to come up with a 13", it would not be more than $400 MAXIMUM less than the 15" (probably $100 or $200). The fact that it's 2" smaller does not account for the fact that an incredible amount of engineering would be done to fit all but a portion of the battery (the least expensive part) in.
Also, for those of you talking about RMBAs, no way. RMBAs don't even have a "real" processor (they use ULV), so I highly doubt they'd be able to fit both a real battery and a processor to power an RMBA.