Great concept, I was completely enthralled in the beginning. Then, fine cracks began to appear on the arms, due no doubt to the click lock mechansim always bending them a little. Then, where the contact pins press against the front flip, a crack appeared on the main casing and one on the flip, going right to the first key. Numeric keys stopped working reliably.I found several similar reports, so I assumed Nokia knew about it.Sent it back, just 12 days out of guarantee. This is clearly a design fault, not abuse. Nokia were not interested, out of guarantee is out of guarantee, period. Am deeply disappointed.Next phone will be the Motorola A630. Never a Nokia.