HT4759: iCloud: System requirementsLearn about iCloud: System requirements
Currently Being ModeratedJan 14, 2013 7:29 AM (in response to Tantounty)
Welcome to the Apple Community.
No, you can't access iCloud.com from a mobile device, you don't need to there is a find my phone app available.
Currently Being ModeratedJan 14, 2013 7:47 AM (in response to Tantounty)
You can access your data on icloud using the various apps on an iOS device. There's no need to use a mobile browser to access icloud.com unless a friend is using your device to check his/her data - that's the one negative to the system.
As for a lost device, download the Find My iPhone app to your device. This is used on iOS to track devices.