This isn't possible with current technology.
Also, wtf is a 'speed block' anyway? If you change the processor in an electrical device, it will probably need more/less power, and so you'd have to account for the battery 'block'. Also, that 'bluetooth block' looks like it takes up less than a square centimeter in space, but pretty much every bluetooth chipset I've seen is substantially larger.
Furthermore, this isn't even marketable from an economic perspective because there isn't some unified protocol for all these different devices that would allow complete backwards compatibility, so in essence, every time you upgrade one 'block', you'll be upgrading 2 or 3, which, after enough time, would be basically just the same thing as buying a new phone. Also, where the hell is the operating system stored on this device? I see no 'memory block'.
0/10
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