Hi all,

With all the iPhone & Beta madness these days, CocoaHeads has snuck up on us - it’s THIS Thursday September 17th.

We have a few different things lined up for this month, with (accidentally) a bit of a theme of application architecture.

Our main talk for the month is by Sye Boddeus:

> > **Architecting Complex Apps, A Personal Story** > > > > _Large applications require a special focus on architecture in order to keep them maintainable, to keep information flow controlled, to keep them testable and to keep project developers sane. By going over a recent project I worked on I will illustrate by example how through understanding design patterns and different application architectures I was able to achieve these goals (mostly)._ > >

The followup act will be by me (Mark Aufflick) – a few people have asked me to give a short (hopefully!) version of my talk from last week’s YOW! Connected conference which I readily agreed to, mostly because I like how the slides came out :)

> > **Bluetooth LE API Design + Code Generation for iOS apps and hardware** > > > > _A brief and whirlwind tour of the problem space of designing and implementing BLE communications between mobile apps and custom developed hardware/firmware where all your targets are moving! We will cover formally documenting the specification, why code-generation is good for you, and api and transport governance._ > >

And again like last month, Craig will have a quick quiz to give out some tasty (not literally) laptop stickers. Should be a fun night!

As always, CocoaHeads is held at Atlassian, which means free pizza and beer!

When: Thursday September 18th, 6:30pm Where: Atlassian (Level 6, 341 George St, Sydney, NSW, 2000, Australia) Look for the Westpac building opposite Martin Place (next to the old Virgin Megastore) and since the bank will be closed there’s a side entrance to access the lifts on Wynyard St.