QUOTE(jcloh86 @ Sep 7 2010, 10:55 AM)
just curious.. erm.. what application is good to backup files in my phone?? and contacts?? saw somewhere that you can use google to backup the contacts. can someone teach me
Hmm, the same questions keep coming back. If your phone is rooted, you can use Titanium Backup (free version available) to backup your phone. I think MyBackup Pro (not free app) can backup non-rooted phones too.
If you don't know what 'root' means, please check the FAQs on the first page.
Other than that, I know there are some specific backup apps to backup your Web bookmarks, APNs, SMS, Call Logs - I have tried BookmarkSB, APN Backup & Restore, SMS Backup & Restore and Call Logs Backup & Restore. You can find these apps on the Android Market.
For phone contacts and calendar, you can sync them with your Google account. Go to Settings / Accounts and Sync on your phone to add your Google account and enable sync. Try it, it's fairly easy..