I have to try upgrading my Nokia E61i to the latest firmware this weekend.
Heres a screenshot below from Aallaboutsymbian shows the latest firmware for the N95 8gb as v11.0.026
Nokia E61i gets predictive input accoring to e-series
I will try it and post my experience.
WARNING : Upgrading Firmware might break your phone and you will loose all data on the phone
So please upgrade only if you know what you are doing !!