Some of these are issues we are chasing. Some we haveseen other reports of but have not been able to reproduce - though we're looking into them.
30+ seconds of blank screen we've seen other reports of, but have yet to see this in house.
The load new tweets crash we have not seen, but, we did fix a lot of things in 1.3 based on crash logs so we'll keep checking the logs to try and get these taken care of.
We have seen some oddities on new tweets coming in and being told about, but not showing as available immediately.
We have also seen where numbers shown in shortcut bar does not match numbers shown in nav pane
We're not sure on Force Closes that freeze
On the shorter updates, those settings apply to background notifications. When you're in the app we update every 90 seconds. Most users probably don't want background updates for notifications that frequent when not in the app from a battery drain standpoint.
Thanks for taking the time to capture all these for us. We will have the next update coming soon.