The Loganberry is a hybrid thornless blackberry. You could do a web search to find a supplier in your area.
Most plants do not have thorns.
Late summer through to late autumn. I have some thornless blackberries, and they are great. [The result of a single 'sport' in the US I believe. ]
There are many places where one can purchase a hand free for a Blackberry. One can purchase Blackberry accessories directly from the Blackberry store online. One may also find Blackberry accessories from reputable online retailers such as Amazon.
You can purchase Blackberry cases on blackberry's website or an certified blackberry retailers. Those of which include Walmart, Best Buy, Sprint, AT&T, T-Mobile, Radio Shack. Any certified Blackberry retailer will offer Blackberry cases for purchase. You can also try online on sites like ebay and amazon.
Providing photosynthetic energy for blackberry plants.
You can get MEP code for Blackberry 8900 from Mobile-unlocker.com
You can purchase unlock codes for Blackberry 7750 from Unbblock.com
You can purchase unlock code for Blackberry 8310 from unbblock.com
You can purchase unlock codes for Blackberry 8320 from Unbblock.com
You can purchase unlock codes for Blackberry 9300 from Unbblock.com
With your hands.
One can purchase a blackberry handheld wireless device on blackberry's official webpage, or at one of their official shops which can be found pretty much anywhere.