I've waited until I've used it for at least 3 full months, my focus needs to call in. I've mainly filled it with my music and audiobooks and so far I haven't had any issues with it and I'm an experienced user of this phone. I keep turning content on and off. I've used it in every possible scenario and it works flawlessly. I also had an AT&T "certified" 8GB microSD card but even 16GB was too small so I went with this one as I needed a lot more space for all my music and also my audiobooks from those I have dozens. I'm glad I did, this card works great for me! Highly recommended. I followed the standard procedure outlined throughout to get the phone and card working and was fully aware that this wasn't M$ "certification", but for the price I was willing to take the risk and i was glad i did. Reliable and durable. Recommendation for WP7 Focus users from me. Edit: Still working great now on November 1st. Have 25GB of audiobooks, podcasts and personal CD music plus a Zune subscription loaded on WP7. After the release of Mango, this phone really got better, and with the extra space, I'm liking it better and better. I sold my Zune HD and now only use it!
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