Difference Between Apple iOS and Android
(1) Apple iOS is a proprietary operating system whereas Android is Google developed open source operating system.
(2) The latest version of iOS is 4.2.1 and Android is 3.0 (Honeycomb) as at today.(Jan 2011)
(3) Both Apple iOS and Android supports Multitasking.
(4) Android has one more short range communication technology NFC on top of Bluetooth.
(5) Apple iOS supports internet Tethering via Bluetooth whereas Android supports with Hotspot via Wi-Fi
(6) Address book share via MMS vcf is perfectly stores in Android with exactly same label of contacts whereas apple iOS doesn’t not support the perfect lebel.
(7) Google Native clients for Gmail,Youtube ,Google Talk,Maps and Search are perfectly designed in Android and Apple uses Apple Mail client to get emails which will not fully support for Gmail features.
(8) Android supports Social Network contact Sync whereas Apple iOS is not.
(9) Skype video calling is supported by Apple and Android.
(10) Viber VoIP Application is only available for Apple iOS at the moment but official site says android in roadmap.
(11) GTalk video is supported by Android whereas Apple iOS does not support.
(12) Both as user friendly and easy to use.
(13) Since Android could be installed on any hardware, so if you want to change the phone or tablet to other vendor will not make much difference is usage whereas Apple iOS runs on Apple devices only.
(14) Patches and bug fixes will be released by Apple only in Apple iOS whereas in Android there are lots of customised versions from 3rd party developers with immediate fixes.
(15) Android can be customised by Vendors or 3rd Party users but whereas Apple iOS is only developed and fixes by Apple. Downgrade is not possible in Apple iOS officially.