The huge system update to Mac OS X 10.5.3 with 200 to over 400 MB resolves a lot of bugs and adds up some additional features to Leopard. Example: More digital cameras with their specific RAW-formats are supported now. Or the possibility to sync the Apple Address Book application with Google Contacts.
Great to see that WIFI stability was increased by the Apple developers.
An annoying - but resolvable - problem appeared after updating when I tried to use the time logging software TimeLog 4: All log entries within TimeLog are saved in iCal - and after upgrading to 10.5.3 my work time entries just doubled. It’s easy to fix the problem by deleting every dublicate log entry - but you better checkt the timesheet in detail before you hand it out to your customer

Steve Jobs presented a new feature of the iPhone - and also the iPod touch. Especially the iPod touch transforms into a new category of devices by adding location based services: By cooperating with Skyhook Wireless it is possible to get the own location by triangulating the signals from different WiFi-hotspots. The iPhone uses also the well known method by using the cell-ids to find the current location. It’s quite interesting, that it seems that Apple is not cooperating with the mobile network operators to get the location by cell ids and triangulation: They realized this feature by cooperating with Google. When I think of the hurdles to realize mobile Location Based Services (LBS) with the different operators … this is not a bad idea.
We really can be curious, whether the iPhone SDK will be the kickoff of a new era in LBS. Maybe Apple will also provide the iPhone web developers with the LBS-SDK Loki SDK for their web applications - that would really roll up the LBS-scene