You can also use Informatica or data loader to download and push data to other systems. S2S(salesforce to salesforce) is the simplest integration. You can also use Webservice API(partner or enterprise) or even build custom web services to do the integration.
Thanks Utsav
[Do mark this as solution and give Kudos if it helps you]
For iphone you need to download salesforce.com app. https://itunes.apple.com/us/app/salesforce-mobile/id281826146?mt=8
http://www.salesforce.com/mobile/apps/
Thanks
Utsav
[Do mark this as solution and give Kudos if it helps you]
Thanks
Utsav
[Do mark this as solution and give Kudos if it helps you]