My wife has the Optimus and within the past month it has been plagued with memory card space, low phone memory, random reboots, and very hot to touch while either charging or using the phone. She has a stock Optimus with little apps other than a few games, doesn't use wifi or anything like that. The phone rebooted at least 5 times in the middle of the night yesterday waking us and our 2 month old kid. Each time it took 10-15min to complete the boot process. The memory low is bs, she is running a 16gb card right now with 12gb free, last week she had an 8gb and had at least 5-6gb free when she got the memory card out of space errors. This is her 3rd Optimus, the first one wouldnt read memory cards and the 2nd she traded for an Evo but ended up back with the Optimus. Sprint is no help when it comes to these issues.