1. Copy apk to /system/app
2. Set its permissions to RW-R--R--
3. Reboot and add it as a widget
Note: It will install normally, but will not save your notes
With thanks to Quarx for the apks
Also, could someone post the /system/framework folder from the official ODEXed 2.1? I need it for porting more and Unyaffs won't extract the backup