Will 3GS accessories work with iPhone 4?

[badlydrawnboy]

I'm thinking about my dock, car stereo connection kit, etc. Will these all work with the iPhone 4?

 

[Intell]

They should all work just as well with the iPhone 4.

 

[tasslehawf]

I don't think the old dock will fit the new phone, but the 30-pin connector hasn't changed. And of course old cases won't fit the new phone.