Have a look at our services:
We've been providing professional FileMaker hosting for over 12 years. No problem on cross-platform implementation, FileMaker works great for such.
You can access your databases via any and all combinations of FileMaker Network Sharing (FileMaker Pro), Instant Web Publishing, Custom Web Publishing and/or ODBC/JDBC. All interfaces' data update immediately when changes are made.
Please let me know if you have any additional questions either here or off-list to jmay(at)pointinspace.com. Thanks!
- John May