It's strange that the rear wiper is an aero blade but the front's are not (at least on my T5.1 Multivan).

Anyway, I'm looking at getting Aero's for the front anyone seen any kits that will fit? Recommend something you have used?

These turned up in a search and look like they will drop onto the stock arms:
AERO VU Wiper Blades Vw Transporter T5 (02.03 on: Amazon.co.uk: Car & Motorbike