I got my Orb last Wednesday (7 days ago). I was aware from the literature and from other postings that dust accumulation could be a problem and cause the phone to slip. Up until last night, I had no problem charging the phone (naked) in landscape position. When not using the charger, I would lay the original plastic protector back on that came with the orb. I thought that would help reduce the lint/dust accumulation, but apparently not. About 4am this morning, my phone woke me with the low battery warning and I realized it had slipped off. It took me several minutes to get it back to charging on the orb and it jumped back and forth from "charging" to "low battery." I had to turn off the alarm display to finally get it to charging only.
I thought I was being careful about dust, but it looks like the orb already needs a cleaning. I was too tired to investigate further this morning. I've read that having a screen protector on the phone's back is better than bare glass - for "sticking" purposes. I've also read to clean the orb using a plain water, or clear tape, and various other methods. What has worked for you?