Got some unfortunate news it would seem...
(my first post on here, and it's a shame for it to be about something as **** as this)
After being on the phone to apple all day yesterday and today, I managed to get put through to a supervisor.
(this is after being on hold for two hours).
He looked over my case, regarding the issue that everyone else in this discussion is having.
(Cannot get messages, as the inbox is full despite plenty of free space on the phone) I have 4GB
The supervisor told me that as of iOS 5, the message limit had been set at 15mb.
He was astounded at both my 92,000 messages, and as to how I knew that specific number.
(I explained that I had used phone view to discover this)
He sent me a web page (that was updated today 15/10/11) explaining this issue. The fact that it was updated today would suggest that this was a purposeful decision by apple to limit the messages as they have.
The web page is:
http://support.apple.com/kb/TS1498?viewlocale=en_US
He said as a result, the only course of action would be to delete messages and photos, videos etc to get the messages under the 15mb limit. Alternatively restoring the iPhone to a completely new phone should do the trick.
Neither of these i want to do but have compromised by beginning by going through and manually deleting all the MMS based messages in the "Messages" app. (and so far after about 50 pictures nothing has changed)
I'm hoping that my phone is not going to be like those who have deleted all their message and still have the problem!
He was unsure why, and did not know if an update would be released to remove the limit. But said even if one was released, that it would be at least a month as they try to include as many fixes as possible. (remember when it took three weeks just for that security fix a while back?!)
He proposed that the limit was put in place as a measure to ensure that users did not exceed their iCloud storage space. But this is ridiculous as 15mb is nothing compated to other things on iCloud. I really enjoyed having my iPhone able to hold soooo many text messages. I guess why this is hitting so hard. As it is coming across as such a step backwards. Other than this I have really been liking iOS 5.
At least the Apple representatives (most of) understood the problem and considered how irritating it is and appologised for the long hold times. He even (claimed) emailed some high up software people to see what he could do about tis problem. I have submitted a suggestion/bug report/complaint via the Apple web site and encourage everyone to do the same.