TimeMachine takes you back to a time before teh Internet

So I easily got an Amazon S3 storage bucket mounted under Leopard, but it turns out Time Machine doesn't support network mounts.

Well it's not that it can't, it actually does - but it won't show you any disks that it doesn't think are local (eg. disks served by Airport Express apparently work fine), so Apple evidently have decided that my net connection isn't fast enough for backups so I'm best off not even trying :(

So let's start hacking :) The TimeMachine preference pane binary has the following methods:

@interface AppleTMPref (Private)
- (BOOL)_isSupportedNetworkMountPoint:(id)fp8;

@interface AppleTMSettings : NSObject
{
    ...
}
- (BOOL)isNetworkBackup;

@interface TMBonjourBrowser : NSObject
{
    NSNetServiceBrowser *_browser;
    NSMutableArray *_netServices;
    NSImage *_serverImage;
}

- (id)init;
- (void)dealloc;
- (id)_dictionaryFromAirPortDiskData:(id)fp8;
- (BOOL)_isLocalNetService:(id)fp8;
- (id)_volumesFromNetService:(id)fp8;
- (id)bonjourDisks;
- (void)netServiceBrowser:(id)fp8 didFindService:(id)fp12 moreComing:(BOOL)fp16;
- (void)netServiceBrowser:(id)fp8 didRemoveService:(id)fp12 moreComing:(BOOL)fp16;
- (void)netServiceDidResolveAddress:(id)fp8;
- (void)netService:(id)fp8 didNotResolve:(id)fp12;

@end

@interface SnapshotUtilities : NSObject
{
}

+ (BOOL)mountPointIsNetworkVolume:(id)fp8;

Time to crack out F-Script...