TechTV has tested Firewire 1 performance against USB 2. External harddrives were tested, and you can see the results in the following link: http://www.techtv.com/screensavers/supergeek/jump/0,24331,3393574,00.html
To quote the final thoughts: "Despite the speed advantage USB 2.0 offers over the old v1.1 standard, FireWire remains the performance king of plug-and-play connections."
However: USB 2.0 is getting attention in the market. You can get external CD-RWs and DVD-writers cheaper than with a Firewire interface, and that alone makes many a Mac user wish he/she had the interface. Maybe not for external harddrives - but as an extra. An iomega zip750 for example. Or a CD-burner, which doesn't _have_ to be on that fast a connection (although it might save you CD-Rs).
I suspect Apple won't introduce USB 2 before Firewire 2, just not to distract users. Clearly, Firewire was a replacement for SCSI (and a good one, too!), and USB was rather one for serial connections and ADB devices (keyboards, mice, tablets etc.).
To quote the final thoughts: "Despite the speed advantage USB 2.0 offers over the old v1.1 standard, FireWire remains the performance king of plug-and-play connections."
However: USB 2.0 is getting attention in the market. You can get external CD-RWs and DVD-writers cheaper than with a Firewire interface, and that alone makes many a Mac user wish he/she had the interface. Maybe not for external harddrives - but as an extra. An iomega zip750 for example. Or a CD-burner, which doesn't _have_ to be on that fast a connection (although it might save you CD-Rs).
I suspect Apple won't introduce USB 2 before Firewire 2, just not to distract users. Clearly, Firewire was a replacement for SCSI (and a good one, too!), and USB was rather one for serial connections and ADB devices (keyboards, mice, tablets etc.).