Oleg writes: [via]
What started as a quick re-factoring effort transformed to a major redevelopment, but finally all pieces fit together tightly and I am pleased to announce that initial release of USB Host Shield library ver.2.0 has been posted to github.
Some of the major improvements include the use of only 5 Arduino pins, 3.5x faster low-level transfers, and the ability to use USB Hub(s).
Make sure you stop by Circuts@Home to check out the full details like the current/future supported device classes and supported hardware versions .
USB Host Shield library Version 2.0 – [Link]