Vodafone have released the AKU2 updates for their v1240 / v1640 Tornado / Universal devices.
The downloads, which can be found here, provide Vodafone's Windows Mobile 5 devices with support for push email ('Windows Mobile Email from Vodafone') and the latest AKU2 software enhancements.
Vodafone's own 'What's new in AKU2' documents can be downloaded as follows:
AKU2 - What's New, Smartphone [Warning - PDF Link!]
AKU2 - What's new, Pocket PC [Warning - PDF Link!]
A quick glance over the documents reveals no mention of A2DP support, so, as with other HTC devices, it has likely been pulled
The usual caveats apply to the update, it will completely wipe your device, so make sure you have a backup first!