It seems that this is slowly but surely transforming into a trend. Whenever there’s a new SDK build released ( especially near an upcoming hardware/software release ) , devs are snooping around for all sorts of hints – hints that sometimes can be misleading.
For example the screenshot above. This can easily be a hint that iPhone OS 4.0 will bring multitasking. But in the same time most stock apps can multitask ( phone.app, iPod.app, Safari.app, Mail.app, etc. ) so, this dialog can refer to existent functionality.
Don’t take articles like this one too serious. Take them as speculations or pure rumors….