iOS 4 is out now with 1500 new APIs including multitasking support, your apps won't support all those new features out of the gate -- they'll need to be updated to take full advantage of the iPhone's new tricks. Happily, Apple started accepting iOS 4-ready apps last week, so there's a handful of interesting apps already available, and we're sure more are on the way. Here's a quick list of what you can check out right now -- we'll be updating this as we go, so check back for more!
- Dropbox: Everyone's favorite file-syncing tool can now sync and complete uploads in the background, and also adds in support for fast app switching.
- Evernote: the notes-in-the-cloud app adds support for fast app switching, and can continue to record audio notes in the background.
- Pandora: Yes, you can finally play Pandora in the background -- and the quick music controls on the left-most panel of the app switcher even control playback when it's in the background. Nifty.
- New York Times: Nothing major, but the Gray Lady supports fast app switching, so you can jump right back into an article without reloading.
- ESPN ScoreCenter: Supports fast app switching, although you'll still have to open it up for scores to refresh, since there's no background updating API.
- How to Cook Everything: Funny that a cookbook is one of the first iOS4 apps out there, but we're Mark Bittman fans, so this is pretty cool -- it supports fast app switching, so you don't have to reload a recipe every time you close the app. Oh, and it's got newer high-res art for the iPhone 4. Tasty.
- Fandango: Now has fast app switching, so you can juggle other tasks while buying your movie tickets.
- LinkedIn: Yep, LinkedIn's iPhone app adds fast app switching to the mix.
Update: We're listing off more as we find them after the break -- check it!
Update 2: "Tested for iOS4" doesn't guarantee new features, but if you want to know which apps can make that claim, here's a handy Google search. [Thanks, jihuiwen!]