The Cityman 450 is based on the 1987 Nokia phone of the same name, and allows the N97 to snugly fit into the front of the casing:
Here is the user guide (and yes, that URL does work):
If you install the application at the above URL, you get an exact simulation of the real Cityman's keypad which lets you actually make phone calls (no contacts of course, you have to dial the numbers yourself):
More photos:
To be honest we're not completely convinced this will ever make it into the shops, and the box does say it's a very limited edition product, but we thought you'd like to see it anyway... :-)