Alternately, as abbreviated in chat rooms

• "However," on screens
• Alternatively, in cyberspace shorthand
• Texting alternative?
• From a different perspective, in chat-room speak
• Texter's "That being said ..."
• "However," in textspeak
• In contrast, in a text
• Texter's "However ..."

Wiktionary Word definitions in Wiktionary
init. (alternative case form of OTOH English)