Thanks emjayes. It's still complicated and risky. The one-step install should be followed by:

1- After the package installation is complete, update the xserver-xomap by either the application manager or apt-get.

2- Then flash your N810 with this kernel and reboot to complete the installation

Note: If you do not know how to flash the kernel or update the xserver-xomap, you are advised not to install this package at all, as you may brick your device while experimenting.

Conclusion:
I hope one day Maemo will have this feature built-in.