I was curious if anyone else has experienced this a issue with RAM from beta 4. I'm finding that multitasking is killing (more often than not) all the apps besides my current one. It seems most the time it's after I use Safari... Maybe Safari is leaking memory? Also, not sure if this is just me as well, but I'm noticing a strange lag when scrolling freshly loaded pages in Safari -- it lags for a second and then instead of scrolling, it selects the closest link where my finger was. It gets annoying because this combined with the low RAM means when I scroll back it tends to refresh that page back to the top of the page. Anyone else? I did a OTA update, so that might be it as well.