Assuming we can buy an OMAP 3630 chip, do you think we could solder the faster and less power consuming 3630 in place of the 3430.

I have read they have the same package size.

The 3430 is at 65nm and the 3630 is at 45nm.

I also read TI pdf that shows a diagram of them sharing the same architecture.

The pdf is located here: http://www.ti.com/lit/swpt024


Have Fun

If you can do the solder work, I know there's a job for you in a robotic assembly line somewhere..

Short answer: No.

Please, come back here when you manage to buy a single 3630 chip from TI.

But but but but, if enough of us agree on it, we could buy a thousand of them! And then it would even make sense to start our own production line! We could call it the ... OpenPandoraBox, or better! without the Box suffix.

Long answer: no.

It will be cheaper to buy 10 of whatever devices seem powerful enough as oposed to the n900.

Most likely they will not sell you a single chip.
However, if you have a reputable email address at a company (I bet you can get access to one), they will send you a free sample, if you tell them the right story.

While I don't believe it would work, if it does, let us know.
Having said that, I see no real reason why it wouldn't only I would not risk my euro $500 device just to test it.

Good luck

TI is not selling OMAP3630 chips in the normal distribution channel. You can come to it only if you are "high-volume wireless OEMs and ODMs"

The best you can get from TI is OMAP3530, in quantities no less than 1000 units. It would roughly cost you around 32-40K USD.

How many N900 devices can you get for that bag of money?

Assuming you manage to do the impossible and unsolder the old processor AND then solder the new processor....the processor will likely fry instantly since the newer processor requires a lower power consumption (unless you mod the software and hardware). Now let's assume you're able to get the power consumption correctly, the software/hardware will have to be able to throttle the clock speed and voltage correctly. Lastly, increasing the clock speed of the processor may affect the operating system in weird ways (depending on how the OS was optimized/written).

Basically....impossible

Embedded devices like tablets, mobile phones and games consoles don't have upgradeable parts like you might be used to on a PC. Everything about them is designed around a specific chip running at a certain speed with particular thermal properties.