I rarely use the QWERTY keyboard on my Kindle and actually prefer the hardware of my Sony Reader PRS-505. I think now that we know what the hardware looks like the big news on Monday will be what is inside the new Kindle. If there are some new functions I hope us existing Kindle owners get an OTA update too. I have been saving up some of my mobile phone money for a new device after Mobile World Congress and it may be tough for me to resist ordering a new Kindle. I understand the new one may ship as soon as 24 February and I'll be keeping a close eye on news from Monday's event to determine if I should order a new one. MobileRead also stated the new Kindle will be priced at the current lower price of the existing Kindle ($359). It was originally priced at $399.
BTW, the existing Kindle is listed on Amazon's site as shipping in 2 to 4 weeks so Amazon may have decided to stop selling the first generation Kindle to wait for the Kindle 2 launch.