As someone that had been using emoze for a while, i just switched to mail2web, and I can tell you that it is much better for push email. You dont have to have your computer running or outlook running to receive your email. Also, with mail2web any changes made to contacts, calendar or email is instantly synced. There is no extra software to download or install on the computer or pda as it is an exchange server, and if you have attachments that are too big or just simply want to check your mail on any computer, you can access mail2web with outlook web access, whereas you have to be at your computer to check that email or so if you were using emoze.
Point for emoze is that it is totally free, whereas if you want to use your original email address to reply you will have to upgrade to $1.99/month personal exchange and set up proxy address, (i personally, didnt mind the upgrade) otherwise when you send or reply emails it will say
yourUserName@mail2web.com If you have any more questions you can search for the push email for 6700 thread. Wideawake started that thread.