Let us look at this from another point of view...the summer tests themselves. Over the past few years, very few of these have actually amounted to anything. Sure, it is an honor to receive a test match of any stature, but could it be that the selectors are using these as proving ground matches? Let's face it, most of the NH teams will rest certain players after a long season while the SH teams will test up and coming players ahead of their Tri-Nations series.
I mean no offense to anyone here, but outside of England's tour to South Africa and Wales going to Australia, the other "Tier 1" tests look like warm ups for the Tri Nations teams and cool downs for their NH counterparts. We all know Australia will use their match against Scotland as a warm up for their Welsh series and given their current form, Ireland may be in for a true shellacking in their NZ series. While the quality may not be there, the Pacific Nations Cup matches will mean more on paper since this is no different than the Tri Nations or 6 Nations competitions.
I wouldn't get too worked up over who's dropped and who's retained until the Tri Nations and Fall Tests appointments are announced. If certain names are missing from those appointments, then I think we will all know what's up. Keep in mind, those coming up through the ranks must prove themselves somewhere and the summer tests series is an ideal place to do so. Same for those needing to fine tune their game.