Abidia wireless for C500

[Guest usdiver]

I'm looking to purchase abidia wireless for my c500 so I can use ebay on the move. Gprs has become quite expensive not to mention slow on the smartphone...and I'm looking at this as a better alternative and possibly cheaper. I've downloaded the trial version but can't do anything with it as you need to subscribe either monthly or a one timer and before I do I need to know if it is worth it. Any help or advice on this would be greatly appreciated.