Dell Venue Pro Has Some Issues

"Once I started to download some apps (I only have about 15 on the phone) and use the phone for what it is, a pocket computer, that's when things start to go wrong. I started to notice some lag, and some freezing issues. It wasn't much at first, but then gradually increased through use. If I had a heavy day of use with the phone, I would start to see it freeze about 3-4 time throughout the course of the day. The freezing would usually clear up if you let the phone sit idle for about 3 minutes or so, but that shouldn't happen. Then came the crashes..."

Quality control issues at the manufacturer, some operating system problems...these are hiccups we've known and (mostly) tolerated during the days of Windows Mobile, but not something we should expect or gloss over with Windows Phone 7. But wait, it gets worse. Apparently despite Dell originally advertising the Venue Pro as carrying 512MB RAM, the shipping model only has 256MB. That in itself might explain the freezing and crashing problems, though there's a mention that switching the internal MicroSD card to a Class 4 model has had some success in alleviating them (warning: doing this will invalidate your warranty and require a hard reset). Any readers have the Venue Pro and seen the same issues?