John
I was really excited when this came out I have a Mac Air and a lot of music and film on it so the ability to stick this in my MiniDrive was great, it was that or buy a 128GB MiniDrive Air which is like $30 more that this and I already had a MiniDrive.  Problem is its not very fast, not fast enough, my girlfriend has a new 128GB MiniDrive and it runs way faster than this in my old adapter and new sandisk 128.  Its great though 128gb in this little chip glad its out cause now its just a matter of time before they make it better.Thanks