I see a lot of cosmetic features in v17, but I was hoping to see some substantial features like subject grouping (see GMail and others) which basically groups all emails for a given subject together.

I also still believe that SmarterMail really needs its own application to make all features available on mobile platforms. I mean we are currently using BlueMail on the the mobile platform which works quite well, but some of our customers are using Zoho Mail which looks much nicer and includes features like subject grouping.

Anyhow, hope to see more interesting features soon.