I have the 7520 using a Boost sim. For $0.20 per day you get full unlimited data access, but only at 14.4-19.2 kbps speeds. I keep the boost i285 phone as a backup and pay the $0.20 a day, so I can call Boost customer service and complain when Nextel packet data is not working. Its possible to use a Boost sim without the wireless web option, as long as the signal indicator is all caps "NXTL". But dont expect any help from boost if you didnt sign up for wireless web and packet data is not working.
using a boost mobile sim in a blackberry, there is no PIN messaging, no SMS, no push email, no html browsing, but there are work arounds.
What I have found if you dont have a BB plan is to dump as many Service Books as possible. On the BB 7520 i have 5 Service Books
with so few Service Books, this essentially forces all the 3rd party apps to use native TCP. If you have all caps "NXTL" in signal, you have native TCP
here is a list of apps I have working on a Nextel BB 7520 with a boost sim
I don't need instant push email, I just need to check email when I am out.
I use Gmail for Blackberries from shapeservices.
) is a pop3 client that works too, I just prefer Gmail.
SMS is through email, using carriers SMTP format or
For HTML browsing, I have Opera Mini, Minuet and BrowserBoss
I have never used PIN, so I dont know what I am missing, but for instant communication, I either make a call, DC, or use Verichat.
From the Desktop, an unexpected surprise, my Calendar, Contacts, Tasks and Notes all sync up with MS-Outlook. The calendar and contacts are a huge plus. MS-Outook Messages dont sync, but I dont need every email going to the blackberry. For important emails, I just set up rules in Outlook to forward important emails to Gmail account.
Here is the list of apps I have that are working on a BB 7520 with a Boost Sim
Apps I paid for
GMail Mobile 1.3.2 - $30
Idokorro Mobile FTP 1.0.30 - $35
Minuet 2.0 - $25
mMail 2.2.3 - $5
VeriChat 2.66b - $45/yr
Free or Demo I have loaded and working
DynoPlex eFile 3.200.013
Google Local 1.1.1
JournalBar 0.9 beta 1
Mobipocket Reader 5.1.0.016
Opera Mini 1.2
Ramble IM 0.910.8
SMTP Client 0.1.1
Spot GPS for Blackberry 1.3.1
Sudoku by Cellufun 1.1
Texas Hold'em King 1.0.16
some gotcha's you have to look out for, when setting this up.
If you buy a used 7510 or 7520 blackberry from ebay for example, it may or may not have an IT policy (policy.bin file). This will need changed or removed and www.blackberryforums.com
has some posts on how-to.
Also, I found things work better if you remove all the Sevice Books, except, WAP Transport, WAP Browser, Desktop, and Blackberry Browser. Remember "less is more".
I lost WAP service books twice, once at home, and once at the mall. At home I restored them using the Desktop Manager. At the mall, I did a "take the battery out" reboot which restored the WAP service books.