Sony's mylo: An uncharacteristic bit of common sense?

What does Sony's mylo tell us? A few thoughts.

One: Can we hope that Sony's choice of mostly third-party software (Skype, Google Talk, Yahoo Messenger) marks an admission of its weakness in software development and a decision to give up the route of providing half-assed, poorly supported proprietary apps?

Two: Does the very existence of the mylo indicate that Sony is giving up on the chronically delayed development of the PSP into a multimedia/VoIP device? Or is this the lite version of the PSP-to-come?

Three: A few theories have been advanced for why Sony's not launching mylo in Japan, which historically must be its most tolerant market for new devices. Lack of WiFi coverage is one, and it's an argument not without merit, though cheap subscription-based hotspot services are on the rise. To turn that on its head, though, is the mylo simply a good example of quick, opportunistic thinking and development from Sony? Could they, god forbid, be doing something sensible for a change by looking at a set of conditions (rise of IM/web-based apps/VoIP, prevalence of WiFi in campuses and other US locations) and working up a product based on them?

[Read: Sony press release]