OBIHAI states that going forward, they will continue to honour the standard 1-year hardware warranty on OBi100 and OBi110 devices purchased from authorized sellers.
OBIHAI has also stated that as of this announcement they will no longer develop or release software updates to these EOL products. The last firmware version released is: 220.127.116.1186.
As for next generation product replacement models, OBIHAI is recommending people buy the OBi200 as a direct replacement for the OBi100/OBi110.
The OBi200 has additional features and capabilities that include ability to configure up to four ITSP VoIP providers. It incorporates a USB expanion port that can accomodate a WiFi, BlueTooth, or OBiLINE FXO central office telephone line adapter. The FXO adapter will essentially emulate the OBi110 FXO feature.
You can read the official OBIHAI announcement HERE.