N900 Board: Noxia RX-51 board N900 Board Ver: 2101 Processor Information: ARMv7 Processor rev 3(v71) My keys feel smooth. I have only had this N900 1 month after it was replaced as the original died. I would have expected it to be a new version. Seems not I guess. It stopped picking up 2G/GSM and had all sorts of power issues. This one seems really good.