He says that it is likely that two further road-car manufacturers will quit the sport at the end of the season, following the decision of Honda, which pulled out last December.
So we're potentially losing at least two teams whatever happens, great! 
Seems like those two know they are essentially at the mercy of a united set of teams now but are still trying to bluff their way out of having to back down - threats of legal action etc. But what do the teams actually want? The cap to be scrapped entirely, or raised? "Formula 1's teams say they are united in their bid to get the proposed £40m budget cap scrapped" could mean either...
edit: I've actually just had an idea, dunno which of all these cap-related threads to put it in, so this'll do. What if they made budgets for each area of the car? Eg. £40m for chassis, £30m for engines, £10m for KERS, etc... Then those who want to develop their own systems still can, and potentially gain the advantage that way, whereas the poorer teams could use a customer engine or KERS for example and save money that way, while still having the possibility to create a competitive car by concentrating their efforts on one area, ie the chassis. Thoughts?
This was similar to my Idea that was posted elsewhere.
I think the Budget cap should be run on a "Declared Value" . Every team would have to declare a value to various systems of the car that they produce themselves, as long as the sum of the "declared value" of the systems does not exceed the budget cap, they could spend more on these systems , but would have to make the various systems available to customers for their declared value. ie:
$40 million budget cap Ferrari declares:
Chassis 15 mil.
Engine 15 mil.
Kers 10 mil.
Other teams should be able to purchase from Ferrari any 1 of those systems for their "declared value", but not more than 1 system. This will leave the door open for the well funded teams to spend whatever they want, as long as they are willing to take a loss with their "Customers" on the "Declared value". New teams could then set their budgets according to what they are purchasing, ie. A Ferrari Chassis for 15 mil. with a Cosworth engine at 8 mil. and a Mclaren KERS for 12 mil. The well funded teams would have the advantage of being able to spend more on updates and any new teams would benefit by getting up to date hardware with less engineering costs. This could also lead to having outside Engine or Chassis builders that don't actually have teams. All the cars would still be running under the same specs, yet the richer teams would still have the advantage of spending, that they currently have, yet there would still be room for a "BraunGP" to buy in and do well.