Not yet. No incentive for me to do so yet. Portal is fascinating, but still too many details to be ironed out and it is not yet tested in the field so for all we know it may be so riddled with bugs as to make it unusable.
Here we are about 40 days from early release and we've yet to hear much about the series' greatest asset, but also its achilleas heel: vehicles. Given the game's troubled past I personally would have preferred much more open channels of communication as a gesture to rebuild shattered trust. Pandemic + developing across 5 platforms (two of which are new) + Hazard Zone + Portal is a lot of stuff to take on even if they dropped some weight by forgoing SP.
Beta may or may not be an indicator how buggy release will be but it should at least give us some insight on the game mechanics at which point I may decide to pull the trigger.
