I managed to get Chromium 14.0.813 working on maemo5 by using chromium buildbots arm snapshots and fiddling with few libraries. Unfortunately it is the "Chromium OS" version which means many things are buggy.

flash works after enabling it and browser it is much faster than microB.

in case someone is interested, compiled ARM binaries can be downloaded from:
http://build.chromium.org/f/chromium/snapshots/Arm/