Tyll,
From now on you should add "+1 month" to your estimates

since Sennheiser obviously has no REAL date to give us. It's not fair what Sennheiser is doing to you guys, placing the brunt of responsibility on you to inform us.

They need to come on here personally and address the matter, whatever the reason is. If there are problems sourcing materials, let us know. If there is something wrong with the product, let us know. If a semi ran into their facility, let us know. I'm sure you agree.