Hi paw,
Thanks for helping to bring this issue to our attention. Although we had not received any reports of this issue with the Nexus 4, we have seen this reported by users of other versions of the Samsung Nexus so I suspect the behavior you are seeing is most likely a result of that same issue.
Our technical team is currently looking into this issue and we hope to be able to resolve it with a future update to our mobile app, but I am uncertain when the issue may be addressed at this time. I have shared the details of your report with them to be used in the investigation.
Even though you are unable to log into our app due to this issue, I believe you will still be able to access our mobile website successfully through your Nexus 4, which you can access by opening the browser on your phone and going to: http://www.auctionsniper.com/mobile
Alternatively, you could potentially change your eBay password to something that does not contain the number “7” (strange, I know) and update your Auction Sniper account accordingly. Once you have done so, I expect that you will be able to access your account through the app.
We apologize for any inconveniences this issue may have caused. If you need any further assistance with this, please feel free to contact our Customer Support team by mousing over the “Help” tab and selecting the “Contact Support” option.
-Mike