TabSplit now uses SSL encryption for all pages and is from now on only available at https://tabsplit.com/. Because of this switch you might need to reauthenticate TabSplit with your Open ID provider.
We have also just published a new Android App Version (1.5.6) which uses https encryption and can be downloaded from the Google Play Store.
As always, drop us a note in the forum if you experience problems or just want to provide feedback. You can also reach us on Facebook and Google+.