Anyone using ios 5 with Exchange?

I know ios 4 had a problem that would actually cause servers to become slow and unresponsive, I was wondering if anyone has updated to ios 5 and uses an exchange server for work? (I'm SURE there is, just haven't seen anyone say anything about this, which may be a good thing) I don't want to update then crash my work servers , but at the same time if it's safe I DO want to update and mess with the new features.

Matt

Here's a couple of links, one would think that if this caused an issue in 4, they'd have 5 set at the same parameters as the fix:

http://www.appleinsider.com/articles/10/06/30/apple_issues_ios_4_fix_for_exchange_activesync_issues.html

http://reviews.cnet.com/8301-13727_7-20009510-263.html

grapes911 said:

The articles you linked say Apple addressed a potential issue almost a year and a half ago, which was just days after iOS 4 was released. I see no reason to think that potential issue made it back into iOS 5.

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I agree, but I've been chatting with our IT guy today and he's on the "better safe than sorry" boat (which, who could blame him?). I'm in agreeance with you, if they found a suitable period (240 seconds) I don't see why they'd change it, but wanted to check and make sure. The internet isn't blowing up with "OMG!1!!1 exchange won't work!? is my phone a brick?!!!" messages so I just thought I'd throw it out there.