Lost info by syncing iPhone to new computer?
You'll need to authorize the new computer to your iTunes account. Then you can re-download any applications you purchased.
As for connecting to the new computer and syncing, you may get a warning about it, but to my knowledge the settings (mail, calendar, etc) are from the computer to the phone, not the other way around. You may need to create the calendar and email accounts on the computer first, or if you're using a provider such as Gmail or Yahoo, configure that on the new computer before syncing.
When you sync an iPhone to another PC, you can do the following for the Contacts/Calendars:
- Sync and MERGE the Contacts/Calendars (under the Info tab) between PC and the iPhone.
- Do not modifying anything on the iPhone by not choosing to sync any info from PC
- Do a one way WIPE AND SYNC PC Contacts/Calendars info by choosing "Replace information on this iPhone" (also under the Info tab)
For the multimedia contents such as Music/Photos/Podcasts/Video/Application, you can only sync FROM the PC to the iPhone.