ok ok ok ok I know I'm jumping the gun, running beta software etc... but thats who I am - a developer  

After upgrading to iOS 9 Beta 1 and reinstalling SD on my iPhone 6 it now crashes on startup. Click the icon and get black screen, seconds later it dumps out to the default iphone page to select the app again. 

reboot, restore, nothing fixes it. 

Any suggestions? Any known issues with SD that the team are working on? Any time frames? 

I'll not upgrade my iPad for now (as I use that for flying) but have only done the iPhone 6 (as I need iOS9 for work development) - having the iphone backup when flying was useful though  

iOS 8.4 beta is out, and that also fixes the 8.3 problem with external GPS receivers. The word is that 8.4 will be released in its final form on 30th June.

yeah but unfortunately the "official" word is that once you install iOS9 you cannot then downgrade to iOS8 series :-) 

No worries though, I'll use the iPad for now.

I would have thought that getting SD running on Beta versions would be high on the agenda though, so that you are ready and not playing catch up after the official release - at least thats how we, as software developers, work :-)