Setups for a simple product development blog?

Hi all,

I’d like to use WordPress to communicate updates on my projects, but I’m a bit lost, as I’m just starting out with it.

At first I thought I would just write a post for each project and then update that single post, but is that a good idea? Ideally I’d like to keep the “old updates” as well, but if I create several posts per product, wont it get a bit messy?

Consider a piece of software for example, say I’m working on an application and I want to keep people updated on the progress, but I have other apps in the works at the same time and I don’t want a mess of posts. Readers interested in project X should easily be able to find out the status of that project, see the screenshots, etc.

Would it make sense then to have just one post per application and update that when new features are completed, new screenshots etc?

Or are there better ways to this? Themes?

Note that I don’t need a full collaboration theme.

Thanks for reading, all tips would be very welcome!