This is ridiculous!
Before we start another flame war, let me just say that the iMac G4 is the most anticipated item that Apple has developed. At San Fransisco in Jan. Steve Jobs unveiled a new Apple product, that came as a result of the three most wanted items in a new computer:
(1) A Flat Screen
(2) A G4
(3) A Superdrive
Jobs also said that he let the iMac shape be the way it wanted to be. In other words, Apple came up with the best possible enclousure for the way this product was designed. (Reference: Steve Jobs at MWSF Keynote over live Quicktime Streaming). In this design Apple managed to create the iMac with these external features:
(1) All the ports can easily be accessed.
(2) The monitor can be adjusted in a wide variety of fashions.
(3) The base is small and compact.
(4) You can very easily carry the iMac by the handle (I cannot remember the reference, although I remember hearing somewhere that Apple recommended it.)
Once you examine these details and the hardware Apple has used for this product, you really get to admire the product.
As for internal upgrades, all you need is RAM. If you really need to upgrade your computer with graphics cards and processor speeds, then go for the PowerMac.
Now, Apple probably will not be using a high-speed G5 for multiple reasons:
(1) The amount of money used to manufacture all the transisters and chip details for anything above, probably 2GHz, is too high right now.
(2) Apple likes to go little by little with their products, by upgrading processor speeds in 200MHz increments, or less. By jumping from 1GHz to 4GHz, Apple will kill sales in all lines of G3 and G4 products. It is basically economical suicide, if you will.
(3) If Apple does use a high speed G5 in their Powermacs, Apple will have to severely increase the speeds of their G4 and G3 lineup of products in order to avoid this economical suicide. The problem with that is that G4 chips of such high speeds are extremely expensive, and, once again, would not be cost effective.
The current model of the iMac G4 is excellent for capturing those who want something basic and simple. However, the only concern I have is the rise of memory and monitor prices.
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It does not take a genius to figure it out . . . just someone who uses a Mac.