Application size in terms of pages and performance and Version Control

Currently I'm looking into the best way to version control our APEX applications. From other threads, it seems it's an area that leaves much to be desired. We are on the verge distributing a large APEX project commercially but I cannot find a suitable versioning method to support bug fixes and new development happening at the same time to the same set of applications. I just hope everyone out there realises versioning is a vital area of the development process and VOTES for it in the V3 poll.
Anyway, enough of the my whinging. I did have a brain wave (quite rare !). What would the drawback be to have only 1 or 2 pages per application. This would allow a developer to always import the application at the start of work (ie from versioning software such as VSS or PVCS) and then export it at the end back into say PVCS. The application has everything self contained and correct versions etc.
This would allow more developers to work on different areas at the same time as opposed to having many pages in the one application where developers could step on each others toes etc. I've considered importing/exporting pages but the fact you cannot lock shared objects means there is a possibility that if many developers are working on the same application someone will change something that affects pages other than their own. It would also be a nightmare to tie up different versions of of pages, shared objects, applications etc. Would there a performance problem with this method ? Incidentally, why can't TABS be shared/subscribed across applications. It means they have to be created separately in each application whereas things like Nav Bars and Templates can be shared across applications.
Currently, my thoughts are that: bug fixing for a production release has to be in a separate stream (apex installation) from say new development work for the same set of applications BUT what this means is that the bug fixes have also to be manually applied in the new development stream - which is a considerable overhead (ie twice the work).
Thanks for hearing me out - assuming you survived to the end !
Any encouraging comments would be appreciated !

Wim,
I don't entirely understand the behavior. There should be little/no difference between the two cases. I'm assuming you have no indexes, which isn't recommended for such large containers anyway. Can you make your document set available to me so I can see if I can reproduce the behavior and look at it more closely? A single container, or dbxml_dump of a container is sufficient (both compress well).
Contact me directly at george dot feinberg at you know where.
George

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Application size in terms of pages and performance and Version Control

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