iOS 4 Update Now Avaliable

Am I the only person who consistently sees headlines like this and thinks "I thought cisco was on version 15 or something, wtf?" only to be reminded of that other ios?

I have heard rumors that iOS 4 is going to be a little pokey (as in slow pokey) on the iPhone 3G. Can anyone attest to that? Or refute that statement?<p>And does anyone know of a site showing how to downgrade if I decide it is too slow and I want to revert back to iPhone OS 3.1.3?<p>(Sorry to ask, but I figured this crowd would know the answers to both of my questions off the bat.)

If you're a developer, the version released today is the same build as the one that has been available as the GM Seed since WWDC.<p>No need to upgrade.<p>Edit: apparently there are a couple differences. Game center isn't installed in the "retail" version, and there seems to be at least one fixed bug on non-3GS devices (see comment below). But the build is the same.

iPhone 3G owners (like myself) may want to check this <a href="http://support.apple.com/kb/HT4204" rel="nofollow">http://support.apple.com/kb/HT4204</a>

Direct download links: <a href="http://www.engadget.com/2010/06/21/ios-4-now-available/comments/28781629/" rel="nofollow">http://www.engadget.com/2010/06/21/ios-4-now-available/comme...</a>

Careful if you have a 3G -- twitter reports are saying the new OS is even slower than 3.x:<p><a href="http://twitter.com/#search?q=ios4%203g%20slow" rel="nofollow">http://twitter.com/#search?q=ios4%203g%20slow</a>

It makes me really unhappy with Apple that the 1st generation iPhones and iPods, although having the same processor and memory as the 2nd generation ones, were made incompatible with this release.<p>It's not nice when a hardware maker dictates I should buy a new gizmo to enjoy the features practically identical gizmos have access to.

Hmm. The iPod app has become very unstable for me. After downloading a podcast, it reliably crashes to the home screen when switching tabs.<p>I will say it <i>is</i> crashing to a very nice looking home screen, in any case.

Any word on iBooks? I'm not seeing it yet, only for the iPad.

Ive been using the final build for two weeks and been having a mail issue. I use the mail client to receive and send my Gmails. Many times the count number even after checking my mail remains and the count is wrong due me seeing in the mail client phantom emails with no content. Also it does not do search well returns no results at times but when I go to gmail on web search works fine. Hope they fix this a bit annoying.

It seems many are having issues with gmail via exchange/activesync on iOS 4 eg <a href="http://forums.macrumors.com/showthread.php?t=932449" rel="nofollow">http://forums.macrumors.com/showthread.php?t=932449</a><p><a href="http://www.google.com/support/forum/p/gmail/thread?tid=5e07dc8778026255&#38;hl=en&#38;start=80" rel="nofollow">http://www.google.com/support/forum/p/gmail/thread?tid=5e07d...</a>

Is there any chance to become available for the iPad too? I'm very happy of my iPad. I could not stand up from my bed this morning because of incredible back pain when I stand up. This lasted all day and will probably tomorrow too. I really enjoyed the iPad.

Updated and it promptly lost ALL my contacts. Looks like some conflict with Google Sync which conveniently went offline afterward...<p>Teaches me well to install software on release day, next time let others test it first...

Does anyone know if mobile Safari supports websockets yet?

Does anybody have a list that shows which of the new features are available on the old 3G model? Is it just the multitasking and video that don't work?

It's taking forever to do the backup. I wonder if there's something wrong.

Pandora is finally useful.

Worth noting that Android 2.2 "released" a month ago still isn't officially available. Android fan here, by the way.

How come it says tethering is new? Tethering has been available on the 3GS for ages, I've used it numerous times.