BSD and MIT license "compliance" with the MS-PL

[Matthew Flaschen]

Tzeng, Nigel H. wrote:
>> Actually, it's quite easy to argue that it doesn't preserve source 
>> availability.  A distributes alpha version of Foo under MS-PL.  B
>> makes FooBar derivative, which becomes fanatically popular, and no
>> version of FooBar's source is ever released.  Source availability
>> is denied for almost every user of a Foo derivative.
> 
> This is the equivalent of saying that BSD is not an open source
> license because Foo is BSD and no version of FooBar's source is ever
> released.

I don't understand what you're saying.  Neither BSD nor MS-PL preserve
source availability.  Both BSD and MS-PL are free and open source.

Matt Flaschen