Differences between the BlackBerry® 10 Dev Alpha A and Dev Alpha B hardware: Stakes and Opportunities for Developers
It is :
“A fair bit of the details are the same, but
there are obviously some differences that are important for developers. Moving
from the OMAP
4460 to the OMAP
4470 has an impact on performance, in particular for
graphics with the new SGX544 graphics chip. The next most important differences
are in radio connectivity. Both devices have Quad Band HSPA/UMTS, but the 4
bands supported are slightly different. If you plan on getting a microSIM card
for your Dev Alpha, check which bands are required for your carrier. For
example, the Dev Alpha B is limited to EDGE on T-Mobile USA, while the Dev Alph
A can get HSPA. Also, the Dev Alpha B has expanded Wi-Fi capabilities, with
5GHz frequency support for 802.11a\n; it supports DLNA, and Bluetooth 4.0 LE.
BlackBerry Infrastructure
There are some APIs that use connections to
BlackBerry Infrastructure, such as BBM™ and Push. These APIs should work over Wi-Fi®
without setting up any special ports, and you will be able to see the
BlackBerry symbol in the homescreen titlebar, which indicates connectivity to
the BlackBerry Infrastructure.
Should you decide to get a microSIM for your Dev
Alpha, you do not need to have “BlackBerry Data” turned on for the account.
Connectivity will be work with regular Internet access alone. There may be some
carriers where data connectivity doesn’t work, but Wi-Fi will work for you in
that case. Please note that this is the case just for the Dev Alpha device and
not BlackBerry 10 launch devices, which will need to have BlackBerry data on
the wireless plan.”
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