Clear Temp & Install to Storage Card
Hello.. I was having the same problem as well. I bought this phone about a month ago and I love it. I started getting a memory error, and eventually the phone stopped receiving texts and notifications. Very frustrating.
I searched online and found a helpful page and then decided to reinstall apps to the storage card. It takes some digging but you can also find tweaks for storing email attachments, temp files, etc. to the storage card (haven't checked, surely the folks here at XDA have suggestions to make this easier). Finally I discovered this really cool little app called cleanRAM.
I've noticed an improvement. Mainly because it seems the HTC apps sure love to eat up local memory and make things run rather sluggish on the Imagio.
I started with the "Troubleshooting: HTC Imagio (Verizon) Sluggishness/Freezing" over at the HTC forums.
(I guess I'm too new to post a link. Sorry!)
And then thought really long and hard about installing software to the storage card. I figured because I never remove it, and its a 8GB card, probably not a bad idea to start doing it.
I had to really think about it because I prefer to save my storage card space for music and pictures.
Anyway, I would install anything system-related such as file finders, registry editors, .Net CF, today launchers, Gyrator, cleanRAM etc to the device. Everything else such as Google Maps, 3rd party browsers, games, GPS utilities, etc. is now installed to the storage card.
I just found this today and it seems to work pretty well. Try searching for "cleanRAM windows mobile" in Google.
Hey XDA folks.. surely you guys have placed more tips and tweaks elsewhere for this sort of thing, specific to the Imagio..??