I'm really impressed with Rainlendar2; while the previous versions had already been very good, they also felt a little like beta versions.
This version, on the other hand, seems rock-solid, and it's very shiny as well (I also like the option dialog's style).
I also love the fact that there's now a Linux version as well - that'll make it much easier for me to finally make the switch to Ubuntu...
There's only one remnant that still bugs me: The snooze function. It should really be possible to set a custom timer for when the reminder should start nagging you again.
Like, for birthdays, I have the reminder set to 14 days in advance - but I would also like to be reminded about seven days in advance again.
Anyways, thanks a lot for this great release, Rainy!