DANOFDANGER: Well iv confirmed the keyboard issue is not isolated and is likely software. Went to two stores and tried the phones, both gave the same repeated key entry and scrolling problem. The home key however was tactile and responsive, mine wasnt so back it went today for a replacement.
People on xda forums were also mentioning keyboard problems of similar or exact issue, switching keyboard apps resolved for some.
Id say the repeated key entry issue is possible on every phone but not everyone is noticing it or they are not pressuring the keyboard and screen with the same conditions i do. I am very heavy end user and type as fast as 50 or more words per minute.
The only issue i have is when txting etc i seem to always press the wrong letters and end up with a lot of errors. I put it down to not being used to the closeness of the keys on the keyboard as I'm used to using the note 5 which the keyboard is a bit wider...
Blardy typos, thought I got them all =P