D/Objective-C 64bit

[Christian Schneider via Digitalmars-d-announce]

Can somebody with a greater d-objc knowledge have a look at this 
example project and tell this naive D-noob what he is missing?

https://github.com/DiveFramework/DiveFramework/tree/master/Examples/Tableview

I am pretty sure that it has something to do with memory 
management and ARC. First it all starts up right, but then a 
delegate method get's called in the wild and some memory 
segmentation is occurring calling  objectAtIndex, which is called 
on very different objects on multiple runs, and I cannot get any 
closer to the real issue.

NSMutableArray _applications ;

is the main culprit, in this I am trying to put some NSObject 
subclass objects. I have to admit that my mind is all Objective-C 
and very little D yet, and probably the solution is very simple. 
What I have further found is, that the crash occurs in relation 
to the visible table cells. As soon as a view for an invisible 
cell is requested, the seg fault occurs. I am trying to elaborate 
a TableView example using View based cells.

To compile the program, you only need to execute "dub" in the 
Examples/Tableview directory, of course assuming you have the 
latest d-objc branch dmd installed and dub (and Xcode, I am using 
5.1.1 but 6 should work just as well).

Thanks a lot in advance!
Christian