I haven’t had time to post much information lately. However heres something that’s over a week old that is still worthy to be posted a week later 
Rogers released some new value packages for the iPhone. These packages seemed to be geared towards to the customers that don’t need 6GB of data. Here’s the packages.
$20 Value Pack
10,000 Text Messages
10,000 Multimedia Messages
Caller ID
Visual Voicemail
Who Called
Unlimited Blackberry Internet Service (BIS): Email/Instant Messaging Only$30 Data Value Pack
10,000 Text Messages
10,000 Multimedia Messages
Caller ID
Visual Voicemail
Who Called
500MB of data: BIS, Windows Mobile, or iPhone3 Year Agreement is required on both plans plus all data overage protection applies. 500MB of data is valued at $25, so the maximum data overage is $75. Some people who have called in have been able to get a $10 credit towards the $30 data value pack, as part of the hardware rebate program. So try your luck if you decide to call in.
I can only assume these are the plans that replaced the 6GB plan that was created during the release of the iPhone as it is no longer available.
Source: Rogers Releases New iPhone Data Value Packs