For all of you N97 users out there with two mobile phones, one of which is a Nokia N97 Simore have developed the answer in the form of the Dual Sim Holder Platinum 3G for N97.

The video below shows it's use:

Dual Sim Holder Platinum 3G Nokia N97 from Dual SIM Simore on Vimeo.

Main Features

For more information head over to the Simore Dual Sim Holder Platinum webpage.

I tried a much simpler dual sim holder many years ago in my Nokia 8800, but they've come a long way since then. This one fits into the space of a standard sim card. The only thing is that you have to cut up your sim cards (adhesive templates are supplied with the holder) to fit them into the Dual sim holder. I suppose it was either that or to re-define the laws of physics and cutting up your sims is a much simpler option.

Though it might seem scary to cut up those SIM cards, this device seems like it'll do the trick nicely; check out the Orange shop on the web to find out more about this process.