This is very different, Apple are responsible not because they are providing you the software but because they are providing a service and that service involves transmission of funds and that scopes them to a completely different set of obligations. If I provide you with an open-source bitcoin-wallet under an MIT license and do not make claims of security or guarantees of any kind and you lose bitcoins due to security issues in said software - it's your own problem. That is in the former and later-case there is a clearly identifiable party which is providing the service, or in the later-case self-service.
With Ethereum it's much more of a gray-area, one could argue slock.it is only providing source-code and your choice to use it in a particular way (interacting with other users, the DAO) is done entirely at your own risk; though I'm not sure that interpretation would stand, since there definitely is a degree of centralized marketing by particular participants - and obviously non-compliance with SEC rules etc.