Nokia 9500/9300i,the Best device for checking mails.BlackBerry connection with Airtel/Hutch is good in case of people using company based servers and for instant communicating among them.
For individuals,with POP/IMAP accounts,9500 is the best (We can even install Blackberry software in 9500 and use it if required).I used Mobile Office with airtel for checking my POP mails,even attachments can be viewed clearly in 9500 similar to checking in laptop.
I've used many mobiles,but none can beat 9500 for checking Mails (Push eMail software is also available from emoze,a freeware,'Automail' is also a freeware) eventhough 9500 looks outdated with NO 3G,comaparatively slow processor,ordinary vga cam,bulky device ('brick'),old series S80 device with no future support,if it comes to browsing or checking mails
it is THE BEST!
the only mobile which came slightly near to it is 'iMate JASJAR', a windows mobile with 'outlook' but still it lacks the originality for viewing attachments.
I don't underestimate other mobiles as they have so many advantages including checking mails,But IMHO,
9500 has an edge!